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The JUCRANK oscillating grinding machines from JUNKER are a versatile solution for the complete machining of crankshafts. You can machine all types of crankshafts from single-cylinder to twelve-cylinder crankshafts. Depending on the type of machining and the production quantity you need, JUNKER designs custom platforms and wheelheads and installs them on your JUCRANK machines.
JUCRANK oscillating grinding machines are the solution for almost all grinding tasks in crankshaft machining. You can grind main bearings (cylindrical, concave, convex) and pin bearings (cylindrical, crowned, concave, and convex) in a single chucking. Even hardened fillets can be ground. Furthermore, JUNKER can provide you with almost any imaginable combination with other grinding processes. Depending on your combination of machines, you can also machine thrust walls, flanges and journals using other JUNKER machines.
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CNC-Grinding Centre S22E-turbo and S22E-NUM
Economic high-efficiency CNC grinding
- 5-axis grinding centre
- Patented vertical design
- 8-station wheel changer as standard feature
- Heavy-duty 10 kW drive power
- Rapid traverse rates of 12 m/min in the linear axes
- Direct drive of the A-axis with up to 500 rpm
- Ultra-modern PC control
- PickUp loader with disk-type magazines or chain loader with 155 variable tool locations
PickUp-loader
- Integrated in the machine
- Variable disk or disk-type magazines
- Capacity: 30 to 45 workpieces
- Workpiece diameter up to 16 mm
Chain loader
- Room-saving machine attachment
- Capacity: 155 workpieces
- Loading and unloading possible during the automatic mode
- Workpiece location coding
- Changing time: 12 sec
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The EJ 29 silver is an O.D. grinder that can also perform I.D. grinding. And the efficient Fanuc CNC control system guarantees precision and productivity second to none. The EJ 29 is now available as a special model silver: with an inside diameter grinding function, extended features and extensive service – all for the price of a standard OD grinding machine.
The EJ 29 silver is the ideal universal grinding machine for
sub-contractors, small-batch producers, and machine manufacturers. For outer and inner diameter grinding in small-scale or single-piece production or in serial operation of larger lots. Even manual grinding is possible using the separate hand wheels to control the X- and Z-axis. The EJ 29 silver combines a high degree of flexibility with low operational costs and offers everything that is important for sub-contract grinding:
• Top machining quality
• High productivity
• Minimal idle times
• Ease of handling
• Fast tool changing
• Small space requirements
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SYNCHRO 4000
- Grinding of centrical workpieces in one clamping
- Workpiece supported between centers
- Any number of grinding wheels, limited only by the grinding length
- Plunge-cut grinding with CBN or corundum
- Grinding wheel package changed by a hydraulically-based clamping system
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Higher productivity when grinding teeth of circular saw blades.
Generating all technically manufacturable tooth profiles with equal and unequal tooth heights in oscillating high performance longitudinal grinding precise to the micron tooth geometry.
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With the FLEXUS, Deckel is launching a revolution in versatility, productivity
and quality in tool production. Wherever high versatility with a high degree of automation is desired, the FLEXUS will show you what it can do – and even reduce nonproductive times.
So, for example, deburring, polishing, drilling or milling will be possible in parallel with tool grinding – and any other operation can be added to this variety, exactly to the customer‘s needs, including assembling, measuring and cleaning functions.
Mininized nonproductive times for optimized productivity: The robot
loads both the wheels and the workpieces into the feeding unit. Through
the latter, simultaneous wheel and workpiece change will be enabled.
Depending on what is required, workpiece loading can be implemented
through a pallet storage facility, a conveyor belt or a drawer system.
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The TGC is a Tool Grinding Center built for the realisation of high precision tools. The 4 or 5 grinding spindles can have 1 to 3 grinding wheel each. The possibility to have up to 15 grinding wheel at disposal, allows a flexibility and a guarantee to make any kind of tool in one working process. The machine shows all its quality in the micro tooling, where it's able to make tools with a diameter less than 0.04 mm, with surfaces hardly alike A special hydrostatic system for the axis moving allows a very precise positioning, with a backlash inferior to 0.0004 mm and a longer lasting life compared to the classic elements of competitive machiners. The particular kinematics unusual for grinding machines, allows a large working flexibility.
The Model TGC (Tool Grinding Centre) has been developed for the production of high-precision tools. The overall excellence of the machine occurs in the grinding of Micro-Tools. Tools having diameters in the range of 0.02 mm to 14 mm are ground in optimal Quality. Resharpening is also possible for tools having diameters upwards to 25 mm.
The heart of the machine is the spindle turret, consisting of 4 spindles (optional 5). Each spindle can be equipped with up to 3 different grinding wheels.
This feature provides the machine with important advantages:
* All required grinding wheels are always and instantly ready for use in the machine.
* The selection of the grinding wheel is performed in seconds.
* Absolute accuracy in positioning and repeatability.
The tools can be ground in one clamping and with the highest degree of precision.
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MicroGrind 21
Front and back end grinding
Universal grinding machine for front- and back-end grinding, chamfering, V-bore as well as step ferrules
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Max Part Size: Swing 12.6 in (320 mm)
Center distance 39.4 in (1,000 mm)
Max grinding diameter ø11.8 in (ø300 mm)
Max load between centers 330 lb (150 kg)
External Grinding Wheel: Wheel spindle bearing Hybrid-type Toyoda STAT® bearing
Wheel drive motor 10 hp (7.5 kw)
Max wheel size (OD x ID) ø20 x 8 in (ø510 x 203 mm)
Max wheel width 2.95 in (75 mm)
Wheel surface speed 8,500 sfpm (43 m/sec)
Wheelhead: Wheelhead rapid feed (infeed) 394 ipm (10 m/min)
Wheelhead feed drive motor 1.75 hp (1.3 kw) brushless servo
Wheelhead slide type V & flat
Wheelhead min. move increment 0.000004 in (0.0001 mm)
Wheelhead angle settings 90° / 30°
Control: Toyoda GC32G2
Table: Table structure Two piece swiveling/traversing
Table swivel (CCW to CW) 10° - 0°
Table rapid feed 394 ipm (10 m/min)
Table feed drive motor 1.75 hp (1.3 kw) brushless servo
Table slideway type V & flat
Table stroke 50.3 in (1,270 mm)
Table min. move increment 0.000004 in (0.0001 mm)
Workhead: Workhead type Dead
Workhead center taper MT #4
Workhead spindle speed (variable) 16 - 500 rpm
Workhead drive motor 1 hp (0.8 kw) brushless servo
Footstock: Footstock type Manual
Footstock center taper MT #4
Footstock max. center retraction 0.98 in (25 mm)
Machine Size: Floorspace 178 x 77 in (4,521 x 1,956 mm)
Net weight 11,000 lb (4,990 kg)
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FIMAT presents a Reishauer Thread Grinding Machine type NRK completely renewed. The original machine has been NC upgraded and supplied with 4 controlled axes. The machine now features:
- X axis: grinding wheel slide
- Z axis: workpart holder slide
- C axis: workpart rotation
- U axis: diamond roll vertical feed
- W axis: diamond roll horizontal feed (optional)
- B axis: helix inclination (optional)
Axes Z and C are interpolated in order to create the thread pitch. The grinding wheel dressing can be obtained by either a shaped diamond roll (asse U) or by the interpolation of axes U and W.
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The Haro Starline PLUS is the very latest development of Haro Technologies for the grinding of complex tools. The machine has been designed early 2007 and announced and demonstrated at the EMO exhibition in September 2007.
The Haro Starline Plus, a 6 axis machine, is build up on the same proven technology (same machine bed, same slide connection, structure and kinematic) as the Haro Starline 550. The 5ft and 6th axes are positioning slides built on a so-called ROTARY axis and allow any suitable angular position of the tool facing the grinding spindle. A Siemens CNC SINUMERIK 810 D is controlling the axis interpolation.
Power at grinding wheel may vary from 3,8 to 20 KW. The Starline PLUS can therefore be used for both sharpening and/or producing tools.
HARO STARLINE 3-6 axis best price/performance NC, grinding & manufacturingA new cover has been designed in such a way that a powerful cooling system (120L/min) may be implemented while the operator still has an easy access to the job area.
Specialized tool boxes and various options (Wheel dressing, tool and/or grinding wheel loader) are components available for manufacturing the system meeting the most demanding user requirements.
Haro Technologies is herewith surpassing the expectations of the 5 axis market. Unbeatable lifetime and robustness are offered as the Haro Starline PLUS is set up with the proven Haro machine structure.
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The Landis LT1 CNC Camshaft Grinder meets all of your challenges for lean, flexible grinding. It is the most compact and affordable CNC grinder we’ve ever developed. While still delivering legendary Landis accuracy and reliability.
The LT1 is ideal for today’s shorter 4 and 6-cylinder camshafts as well as for short-run processing of concentric and non-concentric single- and multi-diameter shafts.
Key Features include:
* Compact, self-contained design with low center height requires 25% less floorspace
* Rigid, FEA-optimized cast iron bed
* Linear motor driven hydrostatic wheel feed system
* Motorized, hydrostatic high-speed spindle
* Powerful, easy to use PC-based open architecture control
* Optimized for use with CBN abrasives
* Available in 500 and 1200mm grindable lengths
Easy access for simple, one-person wheel change
Flexible to accomodate cam, crank and transmission components
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The Landis LT1 CNC Camshaft Grinder meets all of your challenges for lean, flexible grinding. It is the most compact and affordable CNC grinder we’ve ever developed. While still delivering legendary Landis accuracy and reliability.
The LT1 is ideal for today’s shorter 4 and 6-cylinder camshafts as well as for short-run processing of concentric and non-concentric single- and multi-diameter shafts.
Key Features include:
* Compact, self-contained design with low center height requires 25% less floorspace
* Rigid, FEA-optimized cast iron bed
* Linear motor driven hydrostatic wheel feed system
* Motorized, hydrostatic high-speed spindle
* Powerful, easy to use PC-based open architecture control
* Optimized for use with CBN abrasives
* Available in 500 and 1200mm grindable lengths
Easy access for simple, one-person wheel change
Flexible to accomodate cam, crank and transmission components
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The CamGrind M is the ideal production grinding machine for camshafts with a length of up to 3.000mm.
Designed for complete machining of camshafts, concave and convex cam-contours in one clamping, the CamGrind M is the ideal grinding machine for camshafts with a length up to 3.000 mm. Thanks to the consequent use of CBN grinding wheels, shortest cycle times, long tool service life and optimal grinding results can be achieved.
The CamGrind M can be used with a water based emulsion or with coolant oil. Thanks to the proven WOP-G the programming is easy and fast- only a few inputs help to set the revolution profiles automatically.
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GC32M Camshaft Grinder
Max Part Size:
Swing 12.6 in (320 mm)
Center distance (GC32M-63) 24.8 in (630 mm)
Center distance (GC32M-120) 47.2 in (1,200 mm)
Center height 44.1 in (1,120 mm)
Max grinding diameter ø7.9 in (ø200 mm)
External Grinding Wheel:
Wheel drive motor 42 hp (31 kw)
Max 100 hp (75 kw)
[20 hp (15 kw)]
Max wheel size (OD) ø13.8 in (ø350 mm)
[ø3.9 in (ø100 mm)]
[ø5.9 in (ø150 mm)]
[ø9.8 in (ø250 mm)]
Max wheel width 0.98 in (25 mm)
Wheel surface speed 31,500 sfpm (160 m/sec)
[15,750 sfpm (80 m/sec)]
[39,370 sfpm (200 m/sec)]
Wheelhead:
Wheelhead rapid feed 2,362 ipm (60 m/min)
Wheelhead feed drive motor 17.5 hp (13 kw)
Wheelhead slide type Hydrostatic, linear motor drive
Wheelhead min. move increment 0.000004 in (0.0001 mm)
Control: GC50
Wheelhead Traverse:
Wheelhead traverse rapid feed 984 ipm (25 m/min)
Wheelhead traverse feed drive motor 4.6 hp (3.4 kw)
Wheelhead traverse slide type V-slideway, ballscrew drive
Wheelhead traverse min. move increment 0.000004 in (0.0001 mm)
Workhead:
Workhead type Live
Workhead center taper MT #4
Workhead spindle speed (max) 500 rpm
Workhead min. move increment 0.000004 in (0.0001 mm)
Footstock:
Footstock type Hydraulic
Footstock center taper MT #4
Footstock hydraulic stroke 2.17 in (55 mm)
Machine Size:
Floorspace (GC32M-63) 114 x 181 in (2,800 x 4,600 mm)
Floorspace (GC32M-120) 136 x 181 in (3,440 x 4,600 mm)
Net weight (GC32M-63) 18,740 lb (8,500 kg)
Net weight (GC32M-120) 20,944 lb (9,500 kg)
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The ShaftGrind Series offers many advantages, for example in the field of
high-productivity CBN grinding solutions.
Plunge and longitudinal grinding and high-speed rough grinding (HSP grinding) are all used here. In terms of plunge and longitudinal grinding using CBN wheels, the solution featuring a inprocess measuring system offers a high degree of flexibility and extreme precision, even when
processing large components. The non-round package and the WOP-G programming system mean that processing involving both cylindrical and non-round grinding (concave and convex forms) on a single workpiece in a single clamping operation with a very high level of precision have become a reality. From just a few data, the WOP-G programming system defines harmonious speed profiles and thus constant cutting conditions.
The combination of the ShaftGrind Series with high-speed grinding (HSP grinding) allows a high level of productivity with small batch sizes and small families of components. The amount of retooling and adjusting work is minimised thanks to the use of standardised grinding tools and extremely simple workpiece synchronisation.
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BONELI is developing the new BONELI SMART 20 centerless grinder. The machine will have the exact same concept of the SMART 10, however with maximum wheel width of 508 mm (20 inches). All the technological innovations introduced in the SMART 10 (use of spindles, new dressing concept, new software) will also be used in the SMART 20. The SMART 20 will be dedicated especially for thrufeed grinding where it is demanded, beyond precision, extremely high productivity. The launching of the new machine will be during the first months of 2008. Find below the main characteristics of the new BONELI SMART 20:
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Centerless grinding is an extremely efficient process for producing high volume cylindrical components with extremely precise, micron-level, dimensional tolerances.
Cinetic Landis centerless grinding solutions are widely used to process automotive, aerospace, fluid power, precision bars and bearings, as well as literally thousands of other precision parts.
Cinetic Landis supplies the industry’s broadest selection of centerless grinding technologies under the Giustina and Landis Cincinnati brand names. These machines, and the process development, service, and support systems behind them, are known worldwide for accuracy, reliability, and ease of use.
These attributes are illustrated by the compact, high-productivity Viking SuperSeries II®, a machine capable of sub-micron accuracy in high-volume applications. Available in a range of configurations for thrufeed and infeed applications, Viking SuperSeries II® machines can utilize CBN wheels, diamond or conventional grinding wheels.
Larger machine designs such as the RK Series feature double support hydrodynamic spindles for larger work. Grinding speeds range from 43 m/s to 120 m/s. Wheel widths range from 203 mm to 650 mm and wheel diameters from 400 mm to 610 mm.
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Centerless grinding is an extremely efficient process for producing high volume cylindrical components with extremely precise, micron-level, dimensional tolerances.
Cinetic Landis centerless grinding solutions are widely used to process automotive, aerospace, and textile manufacturing components, as well as literally thousands of other precision parts.
Cinetic Landis supplies the industry’s broadest selection of centerless grinding technologies under the Giustina and Landis brand names. These machines, and the process development, service, and support systems behind them, are known worldwide for accuracy, reliability, and ease of use.
These attributes are illustrated by the compact, high-productivity Viking SuperSeries II®, a machine capable of sub-micron accuracy in high-volume applications. Available in a range of sizes and configurations, Viking SuperSeries II®machines can use CBN wheels or slant plunge feed with new generation design.
Large Viking machines feature double support hydrodynamic spindles and cutting speeds up to 60 m/s, while medium and small machines have high speed electro spindles with cutting speeds up to 120 m/s. Wheel widths range from 150 to 650 mm and diameters from 400 to 760 mm.
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BASE
Extremely rigid and vibration-free, thermodynamically stable, one piece cast iron multiple box section design, heavily ribbed, able to maintain consistently high stability under all conditions to the highest level of accuracy over the longest time.
GRINDING WHEEL HEAD
Superior stiff and vibration-free design with steel construction ensuring the highest level of spindle alignment, accuracy and integrity for the spindle under all the working conditions. This is the seat of the nitride steel spindle, supported at both ends by hydro-bearings with forced-circulation of the oil.
REGULATING WHEEL SPINDLE
The structure is made in cast iron and it is fixed on a crank support. Positioned in the center of the slides and not on the side, it allows big amounts of stock removals during rough grinding and very tight tolerances during finish grinding. It is the seat of the casehardened steel spindle, supported at both ends by adjustable bearings.
SLIDES
Wide upper and lower precision slides, hydraulically preloaded antibacklash system provides maximum accuracy for positioning, compensation, repeatability and rigidity. Low friction design, slides protected by a contamination prevention system.
WHEEL DRESSER SLIDES
Slides are hydraulically controlled, with adjustable feed on Monza conventional and Monza CNC single axis, and CNC controlled on Monza CNC multiaxis. Linear precision guides provide: accurate movements stick slip effect elimination and easy maintenance.
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Acme offers a complete line of wet or dry Centerless Grinding machinery for performing a variety of operations ranging from tolerance grinding to decorative finishing on the outside diameter of tube, pipe, rod and bar.
Acme Centerless Systems can utilize coated abrasive belts, abrasive flap wheels, non-woven abrasive wheels, buffing wheels, nylon and wire brushes.
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KCG - 200J
- Easy gusset of minute-sized materials by attaching micron-unit micro gusset device.
- Easy speed control during operation with continuously variable transmission.
- Improved durability with Turcite table transportation system.
KCG - 150/200
- High-resolution realized by adopting the grooved bearing of G/W and R/W.
- Structure to make it easy to change wheel.
- Device to control gusset of R/W with a micro size.
KCG - 300
- High efficiency realized by adopting both sides support type R/W.
- Bed split type, highly rigid, envelop type G/W Wheel head.
- High-resolution realized by adopting the grooved bearing of G/W and R/W.
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The Giustina Evolution™ is a high-speed CNC peel grinder that delivers flexibility and precision fast.
Key Features Include:
* Plunge and Traverse peel grinding of multiple part features in the same cycle
* Part-to-part changeover in less than a minute
* CBN productivity and CNC flexibility
* Wheel speeds up to 250 m/sec.
* No part drivers required
* Utilizes vitrified or plated CBN wheels
* Typical wheel life - 100,000 parts or more
* Workhead spindle mounted rotary diamond dresser
* Simple, CNC part programming
* Choice of SIEMENS or FANUC CNC control
* Worldwide Cinetic Landis service and support
Typical Application:
* Tripod spiders
* Transmission shafts
* Balance shafts
* Gears
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Cinetic Landis fully programmable CNC Plain and Angle Grinders are ideal for medium-to-high volume production cylindrical grinding. These grinders offer the flexibility to do skive grinding using a narrow wheel and traversing table, stitch grinding for plunging multiple diameters, or traverse grinding of straight diameters.
The Landis CNC Plain and Angle grinder is a cylindrical grinding machine designed for high production grinding of concentric or eccentric parts. This value-engineered grinder has been designed using Finite Element Analysis techniques to combine the superior output potential of a flexible grinding system with maximum cost effectiveness.
The Landis CNC Plain and Angle grinder is available in either straight or angle wheelhead models. The angle head model is especially cost-effective because the ability to use up to a 760mm diameter wheel significantly increases wheel life in angle grinding. The Landis CNC Plain is the ideal machine for grinding a wide range of parts including concentric power steering components, transmission-type parts, small camshafts and small crankshafts.
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The Haro Broachline is a range of flexible and accurate broach grinders for grinding or producing round, flat, helical or rack broaching tools. With its 4 to 6 axis capability and longitudinal strokes varying from 500 to 3200 mm this CNC-controlled grinding machine can be used for diverse applications.
The Haro Broachline has actually been developed in cooperation with broach manufacturers in order to respect the specific technical characteristics and constraints attached to this type of tools.
This Haro series has moreover specifically been designed for multi-broach grinding or cutting from solid. The provided software application allows the user to produce a broach with a single adjustment.
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Multimatic I/E CNC has been designed for the simultaneous grinding of bores, shoulders and external diameters and is particularly suitable for grinding big lots of pieces.
The wheel carriages slide on preloaded hardened guideways, with needle bearing interposition and the movement of the axes, by means of brushless motors, is transmitted by high precision ball screws.
The internal grinding unit, with two CNC controlled axes, can carry out a number of grinding operations: internal diameters and/or shoulders, plunge cycles with CNC dressed wheels, etc. The external grinding unit is equipped with two CNC controlled working axes, at an angle to each other.
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The FlexGrind Series provides a wide range of users with solutions for a very wide range of grinding tasks in the fields of external, internal and non-round grinding. As a table-type carriage machine, it offers advantages in terms of precision, flexibility and stability. Thanks to its wide variety of available options it can cover the entire range of possible applications, from a dedicated single-purpose machine to a universal machine.
Highlights
> Complete processing on the in- and outside, in a single clamping operation
> Conventional plunge and longitudinal grinding using corundum grinding wheels
> No need to change grinding wheels to accommodate different workpiece requirements
> Cylindrical and non-round grinding of different profiles on the machine
> Compensation for thermal influences and elastic deformations by means of measurement- controlled grinding and subsequent dimensional check and recording using the easy-to-program DIATRONIC system
> Consistently high-precision positioning
> Linear position measurement transducer on all technical axes
> High rigidity for large workpiece masses thanks to revolving centres
> Float-free workpiece drive for non-round grinding
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The Haro Slabline is a range of grinders capable of grinding very large tools as slab mills. Oversized tools both in dimension as in weight can be totally or partially grinded on this machine with accuracy that can exceed industry standards.
Featuring 1100 to 3200 mm longitudinal strokes, the Haro Slabline can manage 4 to 5 axis and is implementing the KAPP technology: a unique point of grinding is served by one wheel addressing all angles while only the work piece is moved across the grinding area.
Changing heavy tools is optimized by a special positioning system with sensitive fingers assisting the operator in piece manipulation.
The mechanical stability is ensured by the large and solid machine bed made of a narrow structure cast iron. The frame design eliminates vibrations and integrates a path for cooling liquids.
The Slabline is a unique and unsurpassed grinder in both accuracy and capability of processing oversized tools.
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LVA Plain and Angle Grinders
Dedicated or flexible CNC grinding for small to medium components. Internal diameter bore grinding capability.
750mm & 1,500mm shaft length options.
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Drake GS:TI (Grinding System: Thread Internal) grinds threads on internal diameter of such parts as ball nuts, steering nuts, spindles, etc. A perfect companion machine to the GS:TE ... with size control to ± 0.000,2".
Drake Internal Thread Grinders give you quality parts from day one and repeatable precision over the length of the run.
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