Rushan Shuangxing Machine Tool Manufacturing Co., Ltd. is one of the leading manufacturers and suppliers of bench top surface grinder in China. With abundant experience, our factory offer high quality equipment made in China with competitive price. Welcome to contact us for customized service.
This compact floor-mounted grinding unit is built for job shops handling mixed batches of circular metal blanks, balancing heavy cutting power with a condensed footprint that fits standard finishing cells. It accommodates a wide spectrum of blank sizes, covering thin 1.5mm washers all the way up to 60mm thick ring parts, eliminating the need to switch between separate small and large-format grinding equipment for mixed production schedules.
All accuracy data is tested under continuous standard operation, subject to minor shifts based on workpiece material hardness:
- Parallel difference: 0.01 mm
- Cross-batch thickness deviation: 0.03 mm
- Final surface roughness: Ra 0.32 μm
Uniform parallel flat faces reduce assembly clearance inconsistencies for finished circular components, cutting secondary manual polishing steps required before final inspection.
Core Machine Layout and Working Range
The machine's working envelope covers most common mid-size circular workpieces:
- Processable workpiece diameter: Ø30 mm to Ø260 mm
- Supported blank thickness: 1.5 mm to 60 mm
It uses a 750×60×50 mm standard grinding wheel. The broad abrasive surface delivers even contact across wide-diameter blanks, lowering the frequency of wheel truing during daily runs. A 130mm vertical grinding head stroke creates ample space for interchangeable fixture jigs, supporting quick changeovers between ultra-thin sealing washers and thick bearing ring stock.
Adjustable Motion and Spindle Calibration
Fixed spindle rotation speed of 770 r/min is tuned to balance stock removal efficiency and smooth surface texture across alloy and carbon steel blanks. Two independent adjustable speed ranges adapt to every grinding stage:
- Main feeding speed adjustable 2-12 m/min: Higher speeds for fast rough stock removal, slower rates for refined surface finishing
- Wheel dresser travel speed 0.5-1.5 m/min: Controlled truing maintains stable abrasive edge geometry through long production shifts
Dual Drive and Stable Rigid Frame
Paired 22kW grinding head motors deliver matched cutting torque for simultaneous two-sided grinding. The twin-motor setup evenly disperses operational vibration, avoiding uneven flatness on thin blanks prone to dimensional distortion under unbalanced cutting load.
Weighing 12000 kg with outer dimensions 3500 × 3000 × 1850 mm, the solid cast frame suppresses micro-vibration during back-to-back batch runs. Its bench-style compact build avoids the oversized footprint of full industrial heavy grinders, making integration into small-to-medium workshop finishing lines straightforward without special foundation upgrades.
Suitable Production Use Cases
This bench grinding unit serves small and mid-size component workshops producing bearing rings, metal sealing washers, pump disc parts and general circular mechanical blanks. It streamlines mixed-size batch planar finishing, cutting fixture swap downtime and raising consistent finished part yields for daily production schedules.
Common Customer Questions
Q1: Can this bench unit process both thin washers and thick ring blanks in the same production shift?
A: Yes, its wide thickness range of 1.5-60mm and adjustable vertical grinding head stroke support seamless switching between ultra-thin and medium-thick circular workpieces without major fixture rework.
Q2: What advantage does the dual 22kW motor setup offer for mixed blank production?
A: Balanced dual power output delivers steady cutting force for both light finishing on thin stock and moderate stock removal on thick blanks, while limiting vibration that causes uneven parallelism across batches.
Q3: Does the compact bench frame compromise long-run machining stability?
A: The 12-ton solid cast base absorbs operational vibration effectively, holding consistent parallelism tolerance through multi-hour continuous operation on standard factory flooring.
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