Pinnacle Technologies offers a full line of Contact Wheels to suit all of your belt polishing needs.
Whether your process is robotic, automatic, or an off-hand application, we have the wheels that are right for the job. Our elastomer wheels offer high-quality technical performance, combining the maximum characteristics of resistance to loads and dynamic properties. The high resistance to deformation and continuous stresses makes it the ideal material for processing products with a strong design and critical applications.
Additional features that enhance the quality of this material are the high impact elasticity, good resistance to abrasion, mineral oils, fats, and aging. All our products made with Vulkollan® coatings have an excellent long-life span and maintain their value over time
SOLID COATING
Optimal result in finishing processes. Flexible abrasive belts, very fine grits.
GROOVED COATING
Different grooving patterns, (inclination degrees and Land:Groove ratio) increase/decrease the abrasive belt’s cutting action.
SEGMENTED COATING
10mm wide segments horizontally assembled, to ensure high performance and longer belt lasting. On-demand, segments inclination can be changed to enhance the finishing quality of the worked pieces.
Wheel hub made of aluminum and coated with cotton flaps with incorporated sponge, alternated with neoprene flaps (standard depth about 70 mm).
Like “Cotton-Sponge” type, it is mainly used for the working of soft metals, but it has the characteristic of increasing the cutting performance of the abrasive belt, thus making it more aggressive.
The particular depth of the coating means that these products can be used to work a wide range of profiled parts. They are produced in two different hardness: SOFT for finishing purposes (with two cotton flaps layers); HARD for general grinding purposes (with four cotton flaps layers). It can be mounted on manual and automatic machines or on robots.
For best results, do not exceed the recommended speed because the adaptability of the wheel to different profiles is inversely proportional to the rotation speed.
Wheel hub made of aluminum and coated with smooth NEOPRENE foam with standard depth of the coating of around 45-50mm.
As a result of the particular softness of this coating, the wheel is perfectly suitable for the finishing of all soft metals (e.g. brass, aluminum, zama, bronze etc.) and it can follow the most varied profiles.
In order to exploit its softness and flexibility, the speed is greatly reduced and it is recommended to respect the working direction shown on the wheels.
It can be mounted on manual or automatic machines, and on robots.
Wheel hub made of aluminum coated with Vulkollan ® flaps. The “VULKOLLAN® VENTILATED” wheel is universally used for dry operations on manual machines, automatic and robotic systems where the automatic tension recovery of the belt is provided. Studied from the request of wheels adaptable to various shapes of taps, it was later used when the adaptability of the wheel to the workpiece is the target (car industry- working aluminum mudguards, house industry- parts of steel chairs etc.)
The special crossing of the flaps produces an excellent belt cutting action, leaving less roughness on the workpiece than the grain of the belt used.
It is not a coincidence that, when it is used with belts from 60 to 320/380, it grants excellent results both in grinding and finishing workings.
The best results are obtained with the right working speeds shown on each wheel.
Wheel hub made of aluminum and coated with alternating Vulkollan® and sponge flaps horizontally assembled.
The standard depth is about 20-25 mm but, upon request, coating up to 50 mm high is also available.
The coating tends to be flexible but, at the same time, gives an edgy cutting action and high belt performance.
Excellent for both plain and profiled parts ( brass, aluminum, etc.).
It is mainly indicated for dry working, it can be mounted on manual or automatic machines, and on robots.
Wheel hub made of aluminum and coated with 5 mm thick Vulkollan® flaps horizontally assembled.
The standard depth of the wheel is about 20-25 mm but, upon request, coating up to 50mm high is also available.
It is mainly indicated for dry working, it can be mounted on manual or automatic machines, and on robots.
Used for the working of soft metals (e.g. brass, aluminum, etc.), it has a long service life with an excellent flexibility assuring a remarkable belt performance.
Wheel hub made of aluminum and coated with cotton flaps with incorporated sponge, having a standard depth of 70 mm.
It is mainly used for the working of soft metals such as brass and aluminum used in the production of handles, supports for office chairs, etc.
The particular depth of the coating means that these products can be used to work a wide range of profiled parts.
They are produced in two different hardness:
• SOFT for finishing purposes (with two cotton flaps layers);
• HARD for general grinding purposes (with four cotton flaps layers).
It can be mounted on manual and automatic machines or on robots.
For best results, do not exceed the recommended speed because the adaptability of the wheel to different profiles is inversely proportional to the rotation speed.
Wheel hub made of aluminum and covered with grooved rubber using a particular type of cross-cut. The depth of the standard coating is about 15-20mm.
This special grooving increases the cutting capacity and life of the abrasive belt.
It is used at low densities (Shore A 40/50/60) for the grinding of all types of metals (ferrous and non-ferrous) and where a high stock removal is requested (e.g. aluminum radiators). It is used with a coarse - grained abrasive belt with hard rubber coating at 90 Shore A.
It can be used for both wet and dry working. The particular composition of the rubber makes it resistant to all hydrocarbons.
It can be universally used on both manual and automatic machines.
Wheel hub made of aluminum and coated with horizontal leather and sponge flaps. The standard depth of the coating is about 50 mm.
It is indicated for the working of handles, taps and fittings in general, and for all soft metal profiles.
Particularly used for finishing, this wheel needs to be used at low speeds in order to exploit its softness and flexibility.
It can be mounted on manual or automatic machines, and on robots.
Wheel hub made of aluminum and coated with grooved Vulkollan® with a standard depth of about 20-25 mm. It is mainly indicated for dry working, it can be mounted on manual or automatic machines, and on robots for the working of soft metals such as brass, aluminum, zama, bronze ,etc.
Upon request, the pattern of the grooving can be varied in order to increase or to reduce the cutting aggressiveness of the belt. Furthermore, coating up to 50 mm high is also available.
Wheel hub made of aluminum and covered with expanding cut rubber.
By using this system all kind of centrifugal expanding rolls and wheels of all diameters and thicknesses can be produced.
It is suitable for metal, wood and glass rough-shaping and for finishing operations.
Wheel hub made of aluminum with polyurethane grooved coating (available from 60 to 90 Shore A). The special grooving pattern improves the cutting performances of the belt, extending its life service.
Aggressive and noisy wheel, used with hard coatings for heavy grinding operations , deburring workings and/or where a high stock removal is required (e.g. deburring of steel, grinding of turbine blades, and other hard metal workings); lower densities are used for finishing processes of ferrous materials.
It can be mounted on manual or automatic machines, and on robots.
Wheel hub made of aluminum and covered with smooth rubber. The depth of the standard coating is about 15-20mm.
It is suitable for all types of ferrous and non-ferrous metals finishing depending on the density of the rubber and the type of abrasive belt.
It is generally mounted with fine grain belts. It can be used for both wet and dry working. The particular composition of the rubber makes it resistant to all hydrocarbons.
It can be used on both manual and automatic machines.
Wheel hub made of aluminum and coated with solid Vulkollan®with a standard height of about 20-25 mm. It is mainly indicated for dry working, it can be mounted on manual or automatic machines, and on robots for the super-finishing of shaped pieces such as cobalt chrome, titanium, aluminum, brass, zinc, bronze, etc. with very fine grain abrasive belts.
Furthermore, coating up to 50 mm high is also available.
Wheel hub made of aluminum with segments of polyurethane (from 60 to 90 Shore A) assembled with sponge flaps that help in reducing noise level during the use.
Aggressive and hard coatings are indicated for deburring operations and/or where a high stock removal is required (e.g. deburring of steel, grinding of turbine blades, and other hard metal workings); lower densities are used for finishing working of ferrous materials. It can be mounted on manual or automatic machines, and on robots.
Wheel hub made of aluminum and covered with square-grooved rubber. The depth of the coating is about 15-20 mm on standard hubs.
It is suitable for all types of grinding and can be used for both wet and dry working. The particular chemical composition of the rubber makes it resistant to all hydrocarbons.
Used for all types of metals (ferrous and non-ferrous).
It can be used for fettling or finishing depending on the density of the rubber. It can be universally used on both manual and automatic machines. As a result of the land: groove ratio, the use of a wheel with a grooved lining considerably improves the cutting action of the belt by preventing it from becoming polished and consequently extends its working life.
Wheel hub made of aluminum coated with Vulkollan ® flaps. The “VULKOLLAN® VENTILATED” wheel is universally used for dry operations on manual machines, automatic and robotic systems where the automatic tension recovery of the belt is provided. Studied from the request of wheels adaptable to various shapes of taps, it was later used when the adaptability of the wheel to the workpiece is the target (car industry- working aluminum mudguards, house industry- parts of steel chairs etc.)
The special crossing of the flaps produces an excellent belt cutting action, leaving less roughness on the workpiece than the grain of the belt used.
It is not a coincidence that, when it is used with belts from 60 to 320/380, it grants excellent results both in grinding and finishing workings.
The best results are obtained with the right working speeds shown on each wheel.
Aluminum hubs coated with shaped smooth or grooved rubber.
They are mainly used on machines for grinding and glazing operations of stainless steel round and square tubes, bars and profiles for the building trade, food and chemical industry etc.
Wheel hub made of aluminum and coated with polyurethane, it is suitable for grinding, fettling and finishing.
The standard depth of the coating is about 15-20 mm.
It is mainly used for the working of ferrous metals, having an excellent service life and not being subjected to deformation under high pressures.
Rough grinding operations are carried out using coating with a density of 90 shore A , lower densities are used for finishing operations with belts 60,80 grit.
It can be evenly used on both manual and automatic machines.
Drums with aluminum hub and coated with smooth or grooved rubber.
They are mainly used for the edges grinding, waxing operations of skis and snowboard.
Guide roller coated with polyurethane at 90 Shore A , used on grinding machines.
The coating has an excellent service life and reduces the noise during the working.
This article is available on standard dimension of Ø160x120mm. with a shaft Ø 24x160mm. However, it can also be manufactured on customer request for dimensions and special characteristics.
Centrifugal expanding rubber rolls with shank.
These items expand themselves thanks to the centrifugal force and they find a large range of applications, from moulds finishing to metal parts fettling, from beveling of sharp corners to the finishing of shaped parts, etc.
They are principally assembled on portable machines.
Aluminum hubs coated with silicone are mainly used when a high level of heat resistance is required (up to a maximum of 200°C).
The standard depth of the coating is about 15-20 mm.
Silicone wheels are used on packaging machines for the pharmaceutical and food industries, etc.
They are also widely used on gilding machines for wooden picture frames.
White silicone is more resistant to the abrasion than the red one.
Expanding rubber wheels with aluminum body are widely mounted on manual or automatic machines.
They can be used for both dry and wet workings.
Mainly found in the shoes industry, these wheels are mounted on Toupie or multi-heads machines for wooden parts, they can be used also for fettling of metal parts, smoothing of welding parts, glazing etc.
Guide roller coated with polyurethane at 80 Shore A.
It is widely used on portable machines for grinding and smoothing operations of pipes.
This article is produced in the following dimensions:
- 60x100x19 without flanges with 6mm. keyway.
- 65x100x19 with flanges and 6mm. keyway.
- 65x70 with stainless steel flanges.
Vulkollan® centrifugal expanding rollers suitable for finishing operations on portable grinding machines and flexible shafts.
MAX RPM based on belts working speed 30-36 mt/sec on general grinding applications.
Centrifugal expanding rollers suitable for finishing operations on portable grinding machines and flexible.
White and/or coloured rubber wheels and shafts for the smoothing of wood sheets and profiles.
Special drums are also manufactured for sanding and for the maintenance of wooden floors.
Pneumatic rubber wheel with aluminum hub. It can be inflated with hand pump or airline as needed ,to reach the hardness required while maintaining its elasticity. It can be mounted on both fixed and portable machines.
Because of its adaptability to the different working surfaces, it has a wide range of applications.
It can be used for finishing of shaped parts, internal borders, wooden parts ( diameters 100 – 140 mm. are mainly recommended for finishing backs of chairs, sofa, edges of tables etc) , for glazing of various types of metal, footwear, glass, marble, etc.
The following articles are also supplied as spare parts:
- Steel shafts available for the wheels with an M14 threaded hole
- Rubber tyres
Contact Wheel Overview
SEGMENTED COATING
10mm wide segments horizontally assembled, to ensure high performance and longer belt lasting. On-demand, segments inclination can be changed to enhance the finishing quality of the worked pieces.
SKINNY FLAPS COATING and VULKOLLAN® & SPONGE COATING
SKINNY FLAPS COATING - 5mm segments wide. Despite being very flexible, it ensures a strong wearing resistance and a notable belt performance.
VULKOLLAN® & SPONGE COATING - Remarkable cut flexibility and aggressiveness for a high belt performance. Due to the different densities of the two materials, their alternate sequence simulates the effect of a grooved coating but also exploiting the segmented version.
APPLICATION:
Excellent functionality in machining non-ferrous metals (brass, Aluminum, Zama, bronze). With regards to different types of wheels, the flexibility and cut aggressiveness may change, but still offering an optimal result in grinding and finishing processes of contoured and smooth pieces.
Standard coating thickness 20-25 mm; on-demand 45mm is also provided.
- Generally used with flexible abrasive belts:
Coarse grits => Hard coating 40/45 shore A.
Fine-Medium grits => Soft-medium coating 20/25-30/35 shore A.
Main areas of application:
Manufacture of fittings, handles, medical products, etc.
VENTILATED WHEEL
CHARACTERISTICS: High adaptability to profiled parts, good aggressiveness.
APPLICATION:
Deburring and finishing operations of contoured items. This product had been initially created in order to be adaptable to shapes of taps, then its application widened from car industry to steel chairs production, etc. The special crossing of the flaps produces an excellent belt cutting action, leaving less roughness on the workpiece than the grain of the belt used. It is not a coincidence that, when it is used with belts from coarse to fine grains, it grants excellent results both in grinding and finishing workings. By varying the working speed, the wheel may become perfectly adaptable to the different finishing targets.
Abrasive belts: flexible, from grits 60 to 320/380.
USE:
Manual, automatic machines, and robots (automatic belt tension recovery is necessary).
Do not exceed working speed indicated on the products.
NEOPRENE MOUSSE WHEEL
Coating: Neoprene foam, standard height 45mm.
CHARACTERISTICS: High flexibility and extreme softness.
APPLICATION: Finishing operations on shaped items (handles, taps).
Reduced working speed to exploit flexibility and softness.
USE: Manual, automatic machines, and robots.
COTTON-SPONGE WHEEL
Sponge segments wrapped into cotton layers.
Standard coating height 70mm.
CHARACTERISTICS:
Extreme flexibility, suitable for working on very profiled pieces.
SOFT COATING
- for finishing processes (2 cotton layers).
HARD COATING
- for grinding processes (4 cotton layers).
By adding neoprene flaps, belt cutting action will improve, obtaining a more aggressive wheel.
APPLICATION:
Working of non-ferrous metals such as brass and Aluminum; used on pieces with special design such as handles, office chairs basis, etc.
USE:
- Manual, automatic machines and robots.
LEATHER & SPONGE WHEEL
Leather and Sponge flaps. Standard height 50mm.
CHARACTERISTICS:
High resilience and adaptability of the coating; Indicated for the working of handles, taps, fittings in general and contoured parts. Low working speeds are recommended to exploit its softness and flexibility.
APPLICATION:
Dry working.
Grinding and finishing operations with J Flex belts.
USE:
- Manual, automatic machines, and robots.
PLASTICELL WHEEL
CHARACTERISTICS:
Wheel made by a light resin core with good mechanical performance. Resilient coating with remarkable resistance to heat and wearing. PLASTICELL wheel has been studied to satisfy the request of our customers in terms of economic issues still demanding a highly competitive product. It positively affects costs related to waste disposal (compared to metallic waste) and transport due to being very lightweight. The flexible cushion of PU foam, optimal elasticity, and competitive resistance to heat and abrasion.
APPLICATION:
Dry working of all metals such as brass, Aluminum, etc. (handles, taps).
USE:
- Manual, automatic machines, and robots.
Rubber
The chemical composition of our rubber ensures a high resistance to wearing as well as to hydrocarbons, chemical emulsions, and oils; it also offers excellent elasticity and mechanical performance.
COATING
The choice between a solid or grooved wheel depends upon the type of work.
For high stock removal, the ideal version is the grooved one where the correct inclination and ratio of the grooving pattern (Land:Groove), contributes to achieving the perfect performance. The smooth-coated wheel together with fine belts is suggested for finishing operations.
Standard rubber height 15/20mm.
SOLID RUBBER WHEEL
Ideal for metal finishing procedures with fine grain abrasive belts.
GROOVED RUBBER WHEEL
Used for all metal types, ideal for both fettling and finishing according to the hardness of the coating. The Land:Groove ratio improves the cutting action of the belt, avoiding its polishing and giving it a longer-lasting performance.
Abrasive belts:
- fine grains, low rubber hardness
- coarse grains, high rubber hardness.
METAL TUBES AND SHEETS
Rubber rollers produced with different characteristics which, depending on the working phases, are used in feeding systems, in grinding or finishing processes of steel and Aluminum pipes.
They can be mounted on both centerless systems for the grinding of round tubes and on machines for grinding of bars and square profiles, as well as on tube weld grinding units for removing the external weld bead on stainless steel pipes.
USE:
- Ideal for dry and wet production processes.
RUBBER WHEEL WITH CROSS GROOVED SLOTS
Considerable improvement of the belt performance in terms of cutting action and lasting thanks to the peculiar crosscut grooving set. Low rubber hardness to be used for profiled parts (Aluminum and iron radiators), higher rubber density for high stock removal.
USE:
- To be used with several grits.
EXPANDING RUBBER WHEELS
Self-Expanding rubber wheels with Aluminum cores are widely mounted on manual or automatic machines. Mainly found in the footwear industry, these wheels are mounted on Toupie or on multi-head machines for wooden parts.
They can also be used for fettling, smoothing of welding parts, glazing, etc.
SELF-EXPANDING RUBBER HOLDERS WITH SHANK
These items self-expand thanks to the centrifugal force keeping securely hold the abrasive sleeve. They find a large range of applications, from mold finishing to metal parts fettling, from beveling of sharp corners to the finishing of shaped parts, etc. They are principally assembled on portable machines and flexible shafts.
PNEUMATIC DRUMS
The pneumatic rubber wheel is made of an Aluminum hub and a rubber tire that can be inflated by adjusting the wheel’s air pressure, controlling the cutting action. They are mainly assembled on both portable and stationary machines. Thanks to its great elasticity and adaptability it is suitable for a wide range of applications such as work on stainless steel, Aluminum, carbon steel, plastics, wooden parts (back of chairs, sofa, edges of tables) glazing of various types of metals, footwear, glass, marble, etc. Used also for flat grinding, it remarks its excellent ability to conform to the contours of the workpiece.
Spare parts available:
- Steel shafts M14
- Rubber tires.
EXPANDING PU FOAM ROLLERS
PU foam centrifugal expanding rollers with 6mm double key-way suitable for grinding/finishing operations on portable machines and flexible shafts.
Silicone Rubbers
Silicone rubbers have the peculiarity of being remarkably resistant to temperature, chemical attacks, and oxidation; they are excellent electrical insulators, non-adhesive, elastic, and resistant to aging. Our range of silicone-coated rollers is an excellent solution for production lines and packaging in the food, pharmaceutical, and cosmetic markets. Mainly mounted on automatic and semi-automatic systems as feeding rollers. Our silicone offers excellent performance where there are high temperatures, the passage of polymeric film, and the need for non-adhesive material.
Polyurethane
Polyurethane coating is mainly employed with ferrous metals. Exceptional service life, ideal for heavy-duty grinding with coarse-grit belts with impressive stock removal. High tear strength, and excellent load-bearing ability.
It can be used in contact with mineral oils and fats. Thanks to its peculiarity, it is used on feeding systems or for coarse grinding operations with hard coatings.
POLYURETHANE & NEOPRENE MOUSSE WHEEL
CHARACTERISTICS:
Very aggressive and noisy wheel despite the sponge flaps helps in reducing the noise during the working cycle. Suitable for high stock removal operations. Standard coating height 15/20mm.
APPLICATION:
Mainly used for ferrous metals operations. Wheels with hard coatings 80-90 Shore A are used for heavy-duty grinding, deburring, and/or where high stock removal is required (e.g. deburring of steel, grinding of turbine blades, and other hard metal workings); lower hardness is suggested for finishing processes.
USE:
- Manual, automatic machines, and robots.
POLYURETHANE WHEEL WITH CROSS GROOVED SLOTS
CHARACTERISTICS:
Polyurethane with special cross grooved coating; standard height 15/20 mm. Extended wear and deformation resistance. The special grooving pattern improves the cutting performance of the belt, extending its life service. Aggressive and noisy wheel.
APPLICATION:
Mainly used for ferrous metals operations. Hard coatings 80-90 Shore A are recommended for heavy grinding operations, deburring, and/or where high stock removal is required (e.g. deburring of steel, grinding of turbine blades, and other hard metal workings); lower hardness is suggested for finishing processes.
USE:
- Manual, automatic machines, and robots.
GUIDE ROLLER
Idler roller coated with 90 Shore A polyurethane, crowned profile. Usually available in standard dimension Ø160x120mm including shaft Ø24x160mm.
However, different dimensions and special characteristics can be manufactured on request.
USE:
- Mounted on grinding machines as belts guiding.
GUIDE ROLLER WITH FLANGES
Guide roller coated with polyurethane 80 Shore A.
USE:
- Widely used on portable machines for grinding and smoothing operations of pipes.