Peel Grinding Wheel (Diamond / CBN Step Profile Grinding Wheel) is a professional superabrasive tool specially designed for CNC peel grinding machines and precision cylindrical step grinding machines. It is developed for one-step profile grinding of multi-step and variable-diameter workpieces.
Constructed with high-strength steel base and premium diamond / CBN superabrasives, the wheel adopts three major bond systems: metal, resin, and ceramic. It is matched in rough and fine grinding sets to complete multi-step cylindrical forming and dimensional finishing in a single clamping. Replacing traditional turning and multi-stage segmented grinding processes, it realizesgrinding instead of turning and integrated rough & finish machining. It effectively solves the step forming problems of cemented carbide, high-speed steel, high-hardness die steel and precision ceramic micro-shaft parts, ensuring stable batch dimensional accuracy, controllable runout, and significantly reduced overall processing costs.
| Grinding Wheel Model | Structural Features | Application Scenarios |
| 14A1 (Mainstream Universal Type) | Parallel annular abrasive layer, flat outer edge | Standard for 90% peel grinding machines; universal for rough and finish grinding of multi-step straight shafts, milling cutter shanks and precision punches |
| 1A1 (Ultra-thin Narrow Type) | Ultra-narrow grinding working surface | 0.1–0.3mm micro probes and tiny tool step grinding, effectively avoiding processing interference |
| 14V1 (Composite Taper Type) | Customizable V-groove / taper integrated profile | One-time forming for composite step-taper parts, stepped taper shafts and special-shaped punches |
| 4BT1 | Concave flange positioning base | Special for fully automatic imported Japanese / Taiwanese peel grinding machines |
| Parameter Item | Standard Range | Instructions |
| Outer Diameter (D) | 125 / 150 / 180 / 200 / 250mm | Compatible with DJ, Hautmann, Dawei, Rollomatic and other mainstream peel grinding machines |
| Total Thickness (T) | 10 / 15 / 20 / 25 / 30mm | Selected according to the maximum step length of workpieces |
| Bore Size (H) | 20 / 31.75 / 40 / 50mm | 31.75mm (1-1/4 inch) is the universal standard bore |
| Abrasive Layer Thickness (X) | 3–8mm | Standard 5/6mm, customized thickened size available |
| Base Material | 45# Quenched Steel / Aluminum Alloy | Thickened steel base for rough grinding; lightweight aluminum base for high-speed finish grinding |
Custom support: step forming angle, step avoidance groove, single-side abrasive layer thickness, diamond concentration, weight reduction groove, flange positioning stop and special irregular profiles.
Fully compatible with all CNC peel grinding machines: Dawei TP series, DJ DC/DJTOL series, Hautmann, Rollomatic Tesch, QianDao Intelligent and other domestic & imported step grinding machines.
– 14A1 150×15×31.75×6 SDC D91 M 100
– 14A1 180×20×40×5 SDC D46 B 100
– 14A1 200×25×31.75×7 CBN B64 V 100
– 1A1 125×10×31.75×4 SDC D30 B 100
SDC Diamond Wheel (for cemented carbide, tungsten steel, ceramic cutting tools)
– Rough Grinding: D64, D76, D91, D126 (high stock removal, sharp cutting performance)
– Finish Grinding: D15, D30, D46, D54 (mirror surface finish, low scratch)
CBN Wheel (for hardened steel, high-speed steel, stainless steel shafts)
– Rough Grinding: B64, B91
– Finish Grinding: B30, B46
| Bond Type | Code | Application Process | Matching Model |
| Metal Bronze Bond | M | Rough grinding, heavy stock removal, mass carbide processing | 14A1 Universal |
| Resin Bond | B | Finish grinding, high surface finish, low-damage grinding for slender parts | 14A1 / 1A1 Micro Parts |
| Vitrified Ceramic Bond | V | High-speed continuous grinding, heat dissipation & burn resistance, easy dressing | 14A1 CBN for Steel Parts |
Ultra-high Forming Precision & Zero Dimensional Deviation
Integrally processed steel base ensures end face and outer surface parallelism ≤0.002mm, with wheel runout controlled within 3μm. The workpiece step coaxiality and outer diameter tolerance are stably controlled at ±3μm without dimensional drift during mass production. The integrated working surface accurately replicates multi-step profiles, completing multi-stage step grinding in one pass without repeated clamping or tool change.
Matched Rough & Finish Grinding, Balanced Efficiency & Finish
Metal Rough Grinding Wheel: High bonding strength and excellent grain retention prevent slipping and grain shedding during heavy cutting. The material removal efficiency is 40% higher than ordinary grinding wheels, ideal for tungsten steel bar roughing and grinding-to-turning replacement. Built-in weight reduction grooves reduce spindle load and extend machine service life.
Resin / Ceramic Finish Grinding Wheel: Elastic buffering structure minimizes grinding scratches, achieving surface roughness Ra 0.02~0.08μm with no edge chipping or workpiece burn. The porous ceramic structure provides excellent chip removal and heat dissipation, avoiding wheel clogging during long-term continuous operation.
Extended Service Life & Lower Consumable Cost
Superhard diamond / CBN abrasives deliver 5–10 times longer service life than ordinary corundum wheels. Metal-bonded wheels maintain stable profile geometry without frequent dressing, reducing machine downtime and improving production line efficiency.
Factory-calibrated dynamic balance adapts to high-speed spindles of 6000~12000r/min. The rigid steel base resists impact and deformation, compatible with wet grinding and all water-based / oil-based cutting fluids. Custom avoidance design for 0.1mm ultra-fine shafts effectively prevents processing interference.
Full-scenario Customization
Available for single-step, multi-ladder, composite taper and micro slender shaft grinding. We provide personalized abrasive grit and bond matching solutions based on workpiece material, machining allowance and finish requirements, supporting one-stop peel grinding process customization.
Cutting Tool Industry (Core Application)
PCB micro end mills, straight shank drills, PCB routing cutters, extended tungsten steel milling cutters; multi-step shank forming for CNC tool punches, thimbles, taps and reamers; replaces turning processes for integral carbide tool step grinding.
Precision Molds & Hardware Stamping
Multi-step punches, mold ejector pins, special-shaped mold inserts; finish grinding of hardened die steel shafts and bushings after heat treatment.
3C Electronics & Semiconductor Micro Components
Micro stepped heat dissipation shafts, precision probes and test pins for electronic devices; ceramic packaging pins and ultra-fine tungsten steel guide posts, supporting 0.1mm minimum diameter slender shaft peel grinding.
Medical Device Precision Parts
Medical titanium alloy stepped pins, minimally invasive instrument variable-diameter shafts and stainless steel precision casings, realizing low-stress and crack-free precision processing.
Automotive & Power Components
Automobile oil pump micro shafts, valve lifters and sensor stepped shafts, stably controlling coaxiality and runout to meet mass production standards of auto parts.
South China Tool Factory | Mass Step Grinding of PCB Tungsten Steel Milling Cutter Shanks
Customer Pain Points:
– Ordinary resin wheels wore rapidly, requiring shutdown dressing every 8 hours
– Multi-step dimensional fluctuation ±8μm, mass yield rate only 92%
– Separate rough and finish processes led to low single-piece efficiency and insufficient production capacity
Custom Solution:
Matched set of 14A1 metal-bond diamond rough grinding wheel + 14A1 resin-bond finish grinding wheel, applied on Dawei TP peel grinding machine to replicate 3-level step profiles.
Application Effects
– Wheel dressing cycle extended to 72 hours, downtime reduced by 85%
– One-pass integrated rough & finish forming improved single-piece efficiency by 42%, monthly output increased by 30,000 tools
