Rubber & polymer covered rollers
Ebonite (hard rubber) rollers
Ebonite is hard rubber: highly vulcanised, rigid and resistant to many acids and chemicals. Ebonite-covered rollers are used where a firm, non-deforming surface with chemical resistance is needed.
About our ebonite rollers
Ebonite covers are used on textile, paper and chemical processing machines, as guide and spreader rollers, and as a base layer for grooved or spiral rollers. The surface can be ground to a fine finish and machined to profile.
Hardness is held uniform across the face and the cover is ground with reference to the bearing seats so the roller runs true.
Key performance features
- Hardness selected for the application
- Uniform hardness across the surface, within ±1 Shore A
- No run-out on the finished diameter with reference to the bearing seats
- Wide choice of covers to resist chemicals and solvents
- Porosity-free surface finish
- Polymer selection and compounding matched to the duty
- Technical support on site and online
Applications
- Textile processing machines
- Paper machine guide rollers
- Chemical processing
- Base for grooved and spiral profiles
Objectives
- Best result in the application
- Long service life
- Anti-static
- Good abrasion resistance
- Uniform quality
Materials
Typical cover compounds for ebonite rollers. The final choice depends on your inks, chemicals, temperature and hardness requirement.
Ebonite
Ebonite (hard rubber)
-10 °C to +80 °C
Rigid, non-deforming surface · Chemical resistance · Machinable to profile
How we work
From your old roller or drawing to a roller that runs true
01
Roller review
We check your drawing or old roller, confirm diameter, face length, journals and the hardness you need.
02
Cover selection
A cover compound is proposed for the inks, chemicals and temperatures your roller sees in service.
03
Core and covering
The core is prepared or made new, then the cover is applied without porosity and cured.
04
Grinding and inspection
Ground true to the bearing seats, finished as specified, and checked for hardness and run-out before dispatch.
Industries using ebonite rollers
FAQ
Ebonite Roller: common questions
What is the difference between ebonite and normal rubber rollers?
Ebonite is fully hardened rubber. It is rigid and does not deform under load, with good resistance to many acids and chemicals. Normal rubber covers are softer and more resilient, which suits nip and printing duties.
Can you re-cover my existing roller?
Yes. The old cover is stripped, the core is inspected and prepared, and a new cover is bonded, cured and ground to size. Re-covering a sound core is usually faster and cheaper than a new roller.
What details do you need to quote?
A drawing or the old roller, finished diameter, face length, journal details, required hardness in Shore A and what the roller contacts (ink, solvent, adhesive, film, heat). Send these through our request a quote form.
Related technical guides
Related rollers
Request a quote for ebonite rollers
Share your roller drawing or sample, required hardness and what it contacts. Our team will recommend a cover and respond with a quotation.