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Rollaway Covers

As metal removal rates on machine tools continue to increase, the removal of swarf becomes a significant consideration. To meet these increasing demands we continue to be at the forefront of swarf removal by offering a comprehensive range of swarf conveyors to suit most applications.
Machine design should be such that all swarf and coolant flow can be easily directed without obstruction into the swarf conveyor and sufficient space be allowed for a conveyor case that is compatible with the machine performance (recommended case sizes are listed for various types).

Rollaway


Introduction, Flexible Aprons with Roll Over, Basic Operating Situation, Basic Dimensions

  Our rollaway covers are a valid alternative for bellow type applications. Whenever you have limitations regarding space, you should think of a roller cover or apron type protection. We have developed the roller cover line to a remarkable product with many features and options. In the last twenty years we have gained experience by manufacturing over 5.000 roller covers and aprons.
Today we can offer a standard product range with
  • Sixteen different band materials 
  • Two basic roller designs with or without enclosure 
  • Three different types of tensions 
  • Four different possibilities for fixing the band 
  • Five different types of enclosures 
  • Five different types of wiper lips
Rollaway

Introduction

This gives you a choice of almost 6.000 combinations. Besides we offer you customized special solutions for your individual application. Our products are made of high-quality materials. Through our own quality management system which is working according to the rules and guidelines of ISO 9001 we can guarantee high quality products and an outstanding performance. By using special testing equipment and closely monitoring the output of our production, we can deliver permanent and reliable quality.
The durability and product life time is directly depending on:
  • Band travel length in relation to band width
  • Maximum travel speed
  • Time gap between changing (reversing) directions

If all these factors are considered and within a normal range our products can reach travel speeds of 40 meters / 1.500 Inch per minute. In every case our engineers can give you detailed information on the technical per

Brackets for rollercover A in mm A in inch B in mm B in inch Z in mm Z in inch Z in mm Z in inch
RD 40 40 1.57 60 2 7 0 45 1
RD 50 50 1 65 2 7 0 45 1
RD 60 60 2 75 2 9 0 60 2
RD 70 70 2 85 3 9 0 70 2
RD 80 80 3 95 3 9 0 80 3
RD 90 90 3 105 4 9 0 90 3
RD 100 100 3 115 4 9 0 100 3

Dimensions (examples): Abbreviations:
 
BB - Band width RB - Roller tuber diameter AZ - Band travel length

Rollercover type BB in mm BB in inch RD in mm RD in inch AZ in mm AZ in inch
P&H torsion spring system 0-200 0-7.87 21 0,83 400 15,75
P&H torsion spring system 0-200 0-7.87 28 1,10 500 19,69
P&H torsion spring system 0-200 0-7.87 35 1,38 800 31,50
P&H torsion spring system 0-200 0-7.87 40 1,57 1000 39,37
P&H torsion spring system 201-400 7.88-15.75 21 0.83 700 27,56
P&H torsion spring system 201-400 7.88-15.75 28 1,10 900 35,43
P&H torsion spring system 201-400 7.88-15.75 35 1,38 1100 43,31
P&H torsion spring system 201-400 7.88-15.75 40 1,57 1300 51,18
P&H torsion spring system 401-600 15.76-23.62 21 0,83 900 35,43
P&H torsion spring system 401-600 15.76-23.62 28 1,10 1100 43,31
P&H torsion spring system 401-600 15.76-23.62 35 1,38 1300 51,18
P&H torsion spring system 401-600 15.76-23.62 40 1,57 1500 59,06
P&H torsion spring system 601-1200 23.63-31.50 21 0,83 1000 39,37
P&H torsion spring system 601-1200 23.63-31.50 28 1,10 1300 51,18
P&H torsion spring system 601-1200 23.63-31.50 35 1,38 1600 62,99
P&H torsion spring system 601-1200 23.63-31.50 40 1,57 2000 78,74
P&H advanced spring engine 100-2000 3.94-78.74 50 1,97 1500 59,06
P&H advanced spring engine 100-6000 3.94-78.74 60 2,36 2000 78,74
P&H advanced spring engine 100-6000 3.94-78.74 70 2,76 2500 98,43
P&H advanced spring engine 100-6000 3.94-78.74 80 3,15 3000 118,11
P&H advanced spring engine 100-6000 3.94-78.74 90 3,54 3500 137,80
P&H advanced spring engine 100-6000 3.94-78.74 100 3,94 4000 157,48

Flexible aprons with rollaway covers

The demand for roller covers with flexible aprons was initiated to protect machines against hot or heavy chips/swarfs. You should give your machine this additional shield protection. The standard roller cover with fabric band cannot be recommended for these applications. The roller covers with flexible aprons don\`t offer you walk-on capability.

The roller covers with flexible aprons are available in different designs, materials and sizes. If you have limited space we recommend an apron type with curved aluminum links which are riveted to a synthetic fabric with two sided PVC / polyurethane coating or heat resistant aluminum coating. Basically you can also use regular flat brass, steel or aluminum links.

We can even provide you with an all-metal band consisting of aluminum segments. We offer a hollow type and a solid construction. The aluminum links are interlocked with polyurethane hinges providing effective protection against coolants. The low weight of approximately 8 kg/ 17.6 lbs per sqm and the small size makes the product perfect for today\`s machines.

Flexible aprons (without roller cover)

Basic operating situations available

Our flexible aprons are an easy and inexpensive solution for special applications where only a front protection is required. All products are customized and can be delivered within a short period.
The apron usually consists of a basic fabric structure with riveted link material. The link material can be brass, (stainless) steel or aluminum in flat or curved shapes. The heavy duty type aprons consist of a special hollow aluminum construction. You can choose either a metal to metal connection or a design where the aluminum links are connected with polyurethane hinges offering a coolant resistance.

For easy installation we offer you basically three alternatives; as a simple hanging shield, hanging over a deflection roller or in connection with a roller cover (even with an enclosure). For the deflection roller you can use the same technical details as for the mounting brackets for roller covers (see previous section).

By working together hand-in-hand with our customers and getting their feedback we have been able to develop the roller covers and aprons in the desired direction. We strongly welcome every idea or suggestion from our respected customers and will always support them in their designing process for new machines and new ways of protection.

Rollaway covers with enclosures

Our roller covers with enclosures offer a protection for the roller itself against the working environment, require a minimum of space and can be manufactured customized in different designs.
The enclosure itself can be produced of stainless steel, aluminum, color anodizing or other surface treatments. The standard housing sizes are available from 40 by 40 mm (1.57 * 1.57 Inch) to 120 by 120 mm (4.72 * 4.72 Inch). The enclosure width is not limited. When using stainless steel band the band width can be up to 1.000 mm / 40 Inches. In the case your application requires a fabric band, the width can go up to 6.000 mm / 240 Inches.

Our roller covers with encloser are designed for use in horizontal and vertical positions. Please give us detailed information about the operating position.
All roller covers with encloser are ready to fit into your application. They are factory preadjusted to the necessary forces. Through our special inquiry sheets we will guide you through the design



Reach Us
New No 79-Old No 105, Eswaran Koil St, Town Hall, Coimbatore - 641001
Ph : 0422 2395831