Name: Centerless Grinding Wheels for Bright Bar Steel Applications
Brand: CUMI Abrasives
SKU: CGW-BB-001
Author: CUMI Abrasive Team

Centerless Grinding Wheels for Bright Bar Steel Applications

Good

Centerless grinding wheels for bright bar steel applications that present the most daunting challenges to any abrasive manufacturer. The range of requirements and priorities of this application varies from product to product, which calls for an equally wide range of offerings to suit the same. Since in most of the centerless applications, more than one wheel is mounted on the spindle, extremely tight tolerances need to be maintained in the geometry and densities of the wheels to ensure uniform wear patterns even if each wheel in the set is different. CUMI has the expertise when it comes to centerless applications thanks to the advanced manufacturing process, premium abrasive grains, and specially designed vitrified, resin, and rubber bond systems to suit the application needs. Customized solutions are provided for every application and specific requirement. Be it through-feed, end-feed, or in-feed, CUMI wheels ensure that components are finished to stringent quality requirements.

Brand: CUMI

Information Material:

Product Catalogue

Type	Operation	Speed	Good	Better	Best
BRIGHT BAR	Rough	35	DA463 L5 V600	C/G463 M5 VPZ	C463 M5 VG
	Rough	50	-	CA60 J5 B99S/50	1CUMISA463 N5 B820/50
	Finish	35	DA60 L5 V600	C601 M5 VG	-
	Finish	50	DA60 L5 V600	C603 N5 B820/50 CA60 J5 B99S/50	1CUMISA603 N5 B820/50

CUMI Code	Grit Range	Diameter		Thickness		Hardness	Structure	Speed
CUMI Code	Grit Range	(mm)	(Inch)	(mm)	(Inch)	Hardness	Structure	(mps)
CUMISA	46 - 120	350 - 610	14 - 24	100 - 250	4 - 10	I - N	6 & 8	35, 50 & 63
50A / 50MA	46 - 120					I - N	7	35 & 50
65A	80 - 220					L	-	40
SA	46 - 120					I - N	5 - 7	35 & 50
9A	46 - 120					I - P	5 - 7	35 & 50
SBA	46 - 120					I - P	5 - 7	35 & 50
AA	46 - 120					I - P	5 - 7	35 & 50
DA	46 - 120			100 - 300	4 - 12	I - P	5 - 7	35 & 50
A	46 - 120					I - P	5 - 7	35 & 50
C	46 - 120					I - N	5 - 7	35 & 50
GC	46 - 120					I - N	5 - 7	35 & 50

Product Uses

Industries

Steel

Applications

Centreless

Product Description

Centerless Grinding Wheels for Bright Bars

The CUMI Centerless Grinding Wheel for Bright Bars is engineered for steel plants, shaft manufacturers, precision rod suppliers, and machining units where dimensional accuracy and surface finish are critical. Designed using advanced vitrified, resin & rubber bond formulations, it ensures uniform grinding even when multiple wheels are mounted on a single spindle.

Built to handle through-feed, in-feed, and end-feed bright bar grinding, the wheel maintains geometry across its life—reducing dressing frequency and improving output consistency. The result: smoother bars, reduced taper, excellent roundness, and improved downstream machinability.

Features, Advantages & Benefits

Multiple bond systems (vitrified/resin/rubber) → Tailored per application → Consistent results across steel grades
Controlled density & geometry → Uniform wear curve → Long-lasting wheel life, fewer replacements
Precision form-holding → Maintains roundness and tolerance → Bright bars meet QC specs without rework
Designed for high-load centerless grinding → Handles continuous plant production → Improved operational uptime
Custom-made options → Shape, size, grit & hardness → Perfect fit for each steel plant line