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Ball screw jack.
Stainless Steel execution available.
Capacities from 1 Ton to 30 Ton.
Stroke on request.
Body with Base or Pivoting feature.
Upright or Inverted Screw.
Translating or Rotating Screw.
Motor applications. |
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Metric and Imperial Ball screw jacks designs in translating and rotating screw formats in upright or inverted types are available in capacities up to 500kN ( 50 Ton). 2 gear ratios and 2 screw leads as standard, Options include Pre-loaded ball nut, Anti-rotation (keyed), 6 mounting options including trunnion and double clevis.
The Metric Ball Manufacturer of screw jacks have the extra advantage of an integral safety system as standard. |
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Joyce/Dayton - Established 1873
Joyce Ball screw jacks feature a ball nut with integral ball bearings that recirculate along the surface of the manufacturer of ball screw. The significantly reduced friction between the ball nut and screw results in greater efficiency, with up to 2/3 less input torque required to move the load than a similarly rated machine screw jack.
Compared to Machine Screw jacks, Joyce Ball Screw Jacks
- Require less motor horsepower
- Allow higher travel speed
- Provide an extended duty cycle
Joyce Ball Screw Jacks are available in translating screw or rotating screw (keyed for traveling nut) designs. Translating screws are available with threaded, load pad, clevis or plain ends. Options include limit switches manufacturers, professional encoders, geared potentiometers, direct drive and reducer mounts, and protective professional boots. Joyce Ball Screw Jacks are ideal for single or multiple jack systems.
Unlike Machine Screw Jacks, Ball Screw Jacks are not self-locking. Because they will lower under load, a braking motor or other external braking mechanism is required.
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ADJUSTMENT LEVERS
SERIES AE50 - AE100 - AE200 - AE250 - AE300
The control is composed by a central body in metal and in some series by a plastic piece which a little lever complete with knob rubs against: the knob can be supplied dismounted to facilitate the assembly under bonnets or dasboards.
The device is assembled on a wall by means of two fastening screws. |
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| Series-S high duty manufacturer of screw jacks are a range of metric cubic screw jacks designed to have a higher duty cycle and mounting flexibility over conventional worm gear screw jacks. Typically the duty cycle can be extended by 50%. The higher duty rating has been achieved by improving the design of the jacks worm gearbox. The screw jacks are available in capacities from 25kN to 200kN in both translating and rotating screw configurations. |
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| The mechanical cylinders High Performances of series VMP are particularly adapted to the most demanding applications, requiring strong loads with high speeds and important races. With Trapezoidal screw 1,2 or 3 nets, or with suppliers of ball screw, they are available out of relocating screw (VMP-A) or revolving screw (VMP-B). The lengths of screw are adapted to each application. - 9 sizes from 500 to 50000 daN - - Many options such as covers, kneecaps, plates, pivots, selflocking nuts, detection of wear, race ends, industrial encoders, manufacturer of potentiometers of recopy, etc... - All types of motorization: Three-phase current - Single-phase current - D.C. current - Brushless. |
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| The Duff-Norton line of screwjacks (mechanical actuators) includes mechanical actuators manufacturers (machine screw and ball screw) ranging in size from 1/4 ton to 350 tons, stainless steel machine screw actuators, micro-miniature actuators, high duty cycle actuators, motorized machine screw and ball screw actuators, electronic cylinders and motor control systems. Accessories include miter gear boxes, c-face motor adapters, manufacturer of limit switches, transducers, visual and digital position indicators, couplings, supplier of ball screws and ball screw systems, and locking rings. Mechanical actuators are also used for raising and lowering maintenance platforms, opening and closing air industrial dampers, professional oven professional doors and sluice gates, and adjusting tooling machine beds, cable tension and workplace tables. In addition to the broad range of applications and industries for mechanical actuators, they are also used as alternatives to hydraulic and pneumatic systems. |
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T1 T2 T3 T4 T5
Travelling screw
R1 R2 R3 R4 R5
Travelling nut
Max force: 5 KN / 10 KN / 25 KN / 50 KN / 100 kN
Gear ratios: 1:4 1:10 1:16 1:30
Acme screws: 18x4 / 20x4 / 30x6 / 40x7 / 55x9
Stroke length: on request
Motors: 1ph - 3ph Vac / Vcc
Accessories for T Models: inductive or mechanical limit switches manufacturers
Accessories for R Models: integrated limit switches, rotative potentiometer suppliers
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| Linkage components comprised of a rod (bent or straight) with ball couplings, manufacturer of rod ends or clevis end professional fittings used as shift, professional clutch, throttle, steering, accelerator or other types of mechanical controls for lawn and garden, truck, bus, construction, agricultural equipment, recreational vehicles and more. |
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Venture produces a variety of Manual Screw jacks Including;
Fifth Wheel Landing Gear, Used primarily in the RV industry, but suitable for many other applications, 2 1/2" square outer tube, 8000 lbs dynamic load (4000 lbs. per leg) No Load Professional bearing Welds and available in a variety of mounting options.
12,500 lb. static / 8,000 lb. dynamic. 2 1/4" diameter Outer tube Manual Jack used primarily in the Manufactured Housing Industry.
5,000 lb. static / 2,500 lb. dynamic. 2" diameter Outer tube Motorized Jack used primarily in the RV Industry.
We also produce many varieties of custom actuators manufacturers.
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The steel jack is standard equipment for tool and machinery shops, contractors, shipyards, agriculture and workshops:
our steel jack with fixed lifting claw can be delivered with different types of hand crank for lifting the jack shaft along the rack. It offers a very long service life due to its high quality spur pinion, precise worked crank gear as well as additional worked pawl. |
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| Rack & pinion jacks load 1,5 t to 10 t (fig.) withself-locking security crank, keeps the charge in every required position - for pulling or pushings. Special versions on request: - different length of rack - different lift - drive shaft to connect several jacks - with internal professional brake and removable crank |
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Rack & pinion jacks load 0,5 t and 1 t, with self-locking worm pinion for lifting, for lowering, adjusting and fixing of mechanical components, devices, machines, etc.. 0,5 t version also available in stainless steel
robust version with milled rack and hardened driving parts, for in- and outdoor applications
Special versions against additional charge:
- an other lift or length
- an other crank version
- an other fixing possibility
- an other surface treatment
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Our vertical range comprises 5 products:
LinkLift 50 - LinkLift 50 R - LinkLift 80 - LinkLift 100 - LinkLift 100 R
LinkLift 50R * and LinkLift 100R * are renforced versions of the LinkLift. In these cases the chain is equipped with 2 additional rollers per link, whilst the drive housing has 2 additional pinions allowing the dynamic capacity to double. |
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Chainlift was designed for lifting short travel, table type lifts.
The basic principle is identical - the chain is stored horizontally and forms a rigid pushing bar as it is driven through the drive housing, thus applying thrust under a platform.
The drive is generated by the rotation of pinions on rollers, forcing the links to lock and move through the housing. |
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| Roller screw jack provide higher performance compared to ball screw jacks. Ideally suited to applications where a high dynamic load, high accuracy, high speed and a long life are required. |
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Micro Screw jack.
Position indicator with centesimal scale.
Manual control or motorized with feedback. |
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10 models with lifting capacities from 5 to 500 kN.
All versions are designed for both tensile and compressive loads and will operate in any orientation or mounting position
High and low speeds due to two different ratios
Cubic shape of housing allows ideal attachment
Easy synchronization of several worm pinion screw jack units
Complete range of motors and accessories
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JW series screw jack overview:
1.JWM (Trapezoid screw)
JWM (trapezoidal screw) is suitable for low speed and low frequency. Main components: Precision trapezoid screw pair and high precision worm-gears pair.
- Economical: Compact design ,easy operation, convenient maintenance.
- Low speed, low frequency: Be suitable for heavy load, low speed, low service frequency.
- Self-lock: Trapezoid screw has self-lock function, it can hold up load without braking device when screw stops traveling.
Note: Braking device equipped for self-lock will be of malfunction accidentally when large jolt & impact load occur.
2. JWB (General suppliers of ball screw)
JWB (General ball screw) is suitable for high speed, high frequency and excellent performance.Main components: Precision ball screw pair and high precision worm-gears pair.
- High efficiency: Rolling friction improve efficiency greatly, only a little drive power can generate great thrust force.
- High speed:Rolling friction speed up travel of screw easily.
- Lifetime longer: High precision ball screw can make JWB's lifetime longer by 3 times comparing with JWM.
Note ; Braking devices or motor with braking devices are necessary when choosing JWB
Ability of load: 1.96-980kN
Power: 0.25-21kW |
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Steel Screw jack.
Capacities from 0.5 Ton to 150 Ton.
Stroke on request.
Body with Base or Pivoting feature.
Upright or Inverted Screw.
Translating or Rotating Screw.
Motor applications.
Bevel pinion and Pinion Screw Jack.
Size from 5 ton to 50 ton.
Manufacturer of ball screw models.
Anti-Rotation device.
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* Duff-Norton offers a complete line of both standard and custom engineered machine screw actuators for applications up to 350 tons.
* Duff-Norton Ball screw actuators come in many standard models, or can be custom designed for any application up to 50 tons.
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Gear with professional spindle and support tube for stepless height adjustment for sit/sit or sit/stand work stations
- low priced
- small assembly dimensions
- high speed for adjustment
- in combination with our motor drive KTS 3143 the ideal solution for your height adjustment |
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Gear for stepless height adjustment, mainly for manual sit/sit work stations.
- Ratio 1:1 or 1,33:1
- Glass fibre reinforced plastic housing
- Hardened steel gear cogs
- 1200 N load
- Output spindle manufacturers for push force only |
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Mechanical cylinders (screw jacks) are used in linear motion applications to push, pull, lift or lower loads for actuation and precise positioning purposes.
Screw Jacks are available from Power Jacks in both metric and Imperial (inch) designs in load ratings from 5 kN to 3500 kN with machine screw or ball screw manufacturers drives in Cubic, Single Face (Classic) or Stainless Steel housings.
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| The mechanical actuators of series VME Eco are particularly adapted to the applications requiring a good performance ratio/price. With Trapezoidal screw 1,2 or 3 nets, or with ball screw (only on model with revolving screw), they are available out of relocating screw (VMP-A) or revolving screw (VMP-B). The lengths of screw are adapted to each application. - 6 sizes from 500 to 20000 daN - - Many options such as covers, kneecaps, plates, pivots, selflocking nuts, detection of wear, race ends, professional encoders, potentiometers of recopy, etc... - All types of motorization: Three-phase current - Single-phase current - D.C. current - Brushless. |
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Mechanical Screw jack European Light Series
SEL (2,5-100KN)
Mechanical screw jack with housing in Aluminium alloy.
5 different sizes (SEL5, SEL10,SEL25, SEL50, SEL100).
3 different reduction ratios (1/5, 1/10, 1/30).
Lifting/thrust capacity up to 100KN.
Lifting/thrust speed up to 15200mm/min.
T version, featuring Trapezoidal manufacturers of spindle (self-locking).
S version, featuring Globe screw spindle (high efficiency).
Grease lubricated.
Modular and compact cubical design provides maximum adaptability to each specific application.
Wide range of standard accessories/features.
Special execution on request, please contact Setec Group Italy.
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Mechanical Screw jack European Heavy Series
SEP (50-1500KN)
Mechanical screw jack with housing made of Grey Cast Iron (SEP 1000 & SEP 1500 are made of welded carbon steel).
7 different sizes (SEP50, SEP100, SEP200, SEP300, SEP500, SEP1000, SEP1500).
2 different reduction ratios for each size.
Lifting/thrust capacity up to 1500KN.
Lifting/thrust speed up to 9000mm/min.
T version, featuring Trapezoidal supplier of spindle (self-locking).
S version, featuring Manufacturers of ball screw spindle (high efficiency).
Grease lubricated.
Strong industrial design provides maximum performance together with highest reliability, to face most difficult applications in harsh and severe environments.
Wide range of standard accessories/features.
Special execution on request, please contact Setec Group Italy.
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With the "Screw jack Building Block System", ZIMM offers a versatile program for the electromechanical adjustment of linear movements.
The designer finds ideas and solutions for lifting capacities from 0.25 kN to 1000 kN in the modular building set. There are numerous applications, for example, theatre and stage construction, plants for the production of sheet steel and steel pipes, wood working machines, plastics processing machines, textile machines, assembly equipment in the automobile and aircraft industries, food and beverage production equipment as well as packaging machines. |
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Mechanical actuators
