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| Laboratory roll mills are machines for testing the quality and processing characteristics of polymer material by means of discontinuous plastification, mixing or kneading. In both, plastics and rubber processing as well as processing of ceramics or special materials, roll mills by Dr. Collin are setting new standards in terms of precision and reliability. |
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Mineral Processing
Building material plant
Russia
1x roller mill WM1012
rotor diameter 1000 mm
rotor width 1200 mm
input 5-20 mm, 5-40 mm
output <8 mm
limestone
clay 60 m³/h |
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Plain and tooth rolls for intermediate size reduction.
Labtech Essa rolls crushers are designed for rapid, controlled size reduction of ore, mineral or rock prior to metallurgical testing or further milling or grinding. They are typically applied in laboratory or pilot plant applications after primary production of the infeed material in a jaw crusher or similar. The nipping action of two off same diameter individually powered contra-rotating rolls produces an ideal crushing environment for a wide variety of materials. Product sizing is controlled by an (adjustable) gap setting between the two rolls. One roll is heavy duty spring mounted as protection against uncrushable material attempting to pass between the rolls. Roll crushers operate with a minimum of dust generation and produce a material with a tight size envelope containing a minimum of fines. |
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For printing inks, paints or tanning processes having variable viscosities. The roller surface is made of double-metal cold and hard metal alloy having high resistance and shock-absorbing qualities. The transmission system has a multi-line chain wheel allowing initiating the process in a smooth, stable running and noiselessness way.
The roller speed can easily be adjusted manually. The overload prevention device is safe and reliable. The standard configuration is manual, water-cooling and horizontal setting. The roller is made of double-metal cold and hard alloy, being not suitable for the grinding of corrosive materials. |
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Grinders
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Roller and Apron Covers
Arnold roller covers offer effective pro-tection even where space is limited. A rewind mechanism ensures that the plastic or steel band is fully retracted. Together with its casing, available as an option, Arnold roller covers can also be retrofitted with minimum time and expense. Combined with a roller cover, or fitted sepa-rately, our Alustar and Aluform apron covers offer a high level of protection against heavy contamination.
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HEMA has been able to position itself on the worldwide market as one of the leading manufactures of flexible protective coverings. Apart from bellows, our core product, this success has been due primarily to our extensive range of high-quality ROLLER cover systems. We can implement and test the technical production requirements of most customer-oriented solutions and develop alternatives quickly in our recently modernized production facilities.
In very small spaces, ROLLER cover systems are an ideal substitute for bellows coverings and do not require a full seal. They can be installed vertically, horizontally or in any combination of these. Leading international manufacturers are already using more than 30,000 HEMA ROLLER systems. The ROLLER Series offers customers a very large selection of different combinations, enabling them to lay out the covering as efficiently as possible. Customers can choose between:
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Its matter, fabric coats indeformable, allows a great flexibility and an effective protection of the slides counter the stains, the chips and the cutting fluid while offering a good esthetics even in high rates of travel.
Deliverable with or without case of protection.
Several tens of matters available according to the conditions of use.
Deliverable with aprons Aluminum or execution reinforced for protections of pit or dangerous passage (possibility of aprons piétonnables) |
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Synchronous Autocoupleur with rollers
For a universal use
It réaccouple automatically in the initial position because of the resumption of synchronism all 360°
Positive coupler with rollers
Maintained transmission
There is no dissociation between kinematics and the driving force
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Batch terminal
The batch terminal serves for the stacking of big packages for the laminated storage in trucks or journals and is offered as accessorie for conveyor belts,
weight categories up to 100kg per package
vertical lift up to 4 meters
dimension of the packages: from 400mm x 400mm x 400mm up to
1200mm x 1200mm x 1600mm
It is also possible to link it in manual workspaces. |
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OR-type External Pneumatic Roller Vibrators are characterized by the reduction or even the elimination of friction through high frequencies and high centrifugal forces. At the same time, OR Vibrators are completely insensitive to resonance.
In OR Roller Vibrators vibration is generated by a rotor which describes an eccentric movement inside a steel race. OR Roller Vibrators generate very high frequencies and centrifugal forces with low consumption as compared to the force given. For activation a 2/2-way-valve and filtered compressed air are required. OR Roller Vibrators are used on bins and hoppers to avoid bridging or rat holing, as flow aids, as well as for screening, compacting, sorting, dissolving and cleaning applications.
- Available in eight different sizes
- Maximum operating temperature: 390° F
- Oil-free operation possible
- Great acceleration
- High centrifugal force
- Low noise level
- Low air consumption
- Maintenance-free
- Standard ATEX ExII3D certified |
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Pneumatic vibrator with Rouleau - Model DAR:
- Without maintenance.
- Noise Level ranging between 75 and 100 dBa,
- High Output.
- Seals with dust.
- Installation in an aggressive environment.
- Use until 200°C.
- Use of an compressed air with an oil mist. |
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* for die weights above 10 tons
* low rolling friction
* hydraulic lifting
* underside can be used to move rolling bolsters
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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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The quietly running elero drives are reliable, durable and maintenance-free. They offer you the comfort of operating your roller shutters or awnings automatically by pressing a button instead of via crank drives or belts. The easily installed tubular motors can be fitted into shafts from 40 to 98 mm. They require very little space and are protected against overload by a thermal protection system.
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Series A2../ARC 112 to 355, for frequency converter operation, ARB 22 to 65, heavy version for mains operation
Output range 0.4 kW to 500 kW (ARB series from 0.4 to 5.5) Acceleration torques 40 Nm to 3,000 Nm
Speeds 3,000; 1,500; 1,000; 750; 600; 500 rpm, lower speeds available on request |
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MODEL: ELP I-25
Load Capacity: Kg 2500
Overall Length: mm 1530
Fork Length : mm 1150
Width over Fork: mm 520 / 540
Lowered Height: mm 75
Raised Height: mm 190
Wheel Type(s): Poly (std) / Nylon / Rubber
Weight: Kg 77
OPTIONS: Tandem Rollers
KEY FEATURES:
Heavy duty reinforced frame
3-position control handle
Hand & foot lowering controls
Adjustable push rods
Exit / Entry helper rollers
Articulating Axle
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Hypro roller pumps are the number one all-around choice by farmers throughout the world. The rollers (from 4 to 8, depending on the model) revolve inside the pump housing to force the spray solution through the outlet to the nozzle. Roller pumps have a low initial cost and are extremely versatile. They operate efficiently at PTO speeds of 540 and 1000 rpm and have a wide pressure range of up to 300 psi and flow rates of 2 to 74 gpm. Roller pumps are self priming and easily adapt to PTO or gas engine drives. Specific seal, roller and casting materials can be selected for compatibility with certain herbicides, pesticides, fungicides and fertilizers.
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Kaller Roller Cams are used for piercing, trimming, flanging and restriking.
The Roller Cam can be mounted in both vertical and horizontal planes and contain an internal gas spring for slide return. |
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