Centrifugal Barrel Tumbling

Dongguan Xindingsheng Intelligent Grinding Technology Co., Ltd. is one of the leading manufacturers and suppliers of centrifugal barrel tumbling in China, featured by quality products and good price. Please rest assured to wholesale bulk customized centrifugal barrel tumbling from our factory. For quotation, contact us now.

Designed exclusively for ultra-precision, ultra-thin, and micro-sized components, this lightweight centrifugal barrel finisher is driven by a 7.5KW energy-saving motor. With a precise speed range of 0-160 RPM, it delivers exceptional stability at low speeds-eliminating deformation and scratches on precision parts caused by high-speed grinding.
Boasting a 70L capacity, the small-volume barrel is ideal for small-batch ultra-precision processing. Customizable fixed partitions inside enable separate grinding of micro-parts (no collision, no scratching) with a grinding precision of Ra0.05μm.
Lightweight modular design ensures compact size and easy mobility, facilitating workshop layout. The food-grade polyurethane inner barrel is odorless and pollution-free, meeting environmental requirements of medical and electronics industries.
Quiet nylon gear transmission keeps operating noise ≤55dB (compliant with workshop environmental standards), making it suitable for cleanrooms and precision processing workshops. Equipped with an energy-saving inverter, it reduces power consumption by 30% compared to traditional models.
Fully enclosed barrel with negative pressure leak-proof design prevents grinding fluid splatter, maintaining a clean workshop environment-perfect for ultra-precision parts in medical devices, electronic components, and micro-hardware.

Overall Structure (Lightweight & Precision-Oriented)

Modular lightweight design includes a light upper cover, energy-saving base, precision barrel turntable assembly, dustproof electrical cabinet, and small receiving trough. All components feature scratch-proof and collision-proof treatment, adapting to cleanroom requirements with easy assembly and maintenance.

• Light Upper Cover: Thin high-strength steel with electrostatic spraying (scratch-proof, easy to clean); fine-hole ventilation baffles (prevents micro-abrasive leakage); transparent acrylic protective door (real-time grinding observation) with imported high-precision travel switch (automatic power-off when opened, ensuring safety).
• Energy-Saving Base: Thin channel steel welding with adjustable leveling feet (precise horizontal adjustment in cleanrooms); lightweight aluminum motor fixing plate with precision screw adjustment (accurate belt tension control, reducing power loss); built-in small liquid collection tank (prevents workshop floor contamination from leaked grinding fluid).
• Precision Barrel Turntable: Die-cast aluminum turntable (lightweight, high-precision, deformation-resistant); small hexagonal barrels with 5mm-thin partitioned food-grade polyurethane liners (for micro-parts); micro worm reducer for barrel tilting (slow, precise, no part dropping during unloading); spin-on barrel cover (superior sealing, ideal for micro-parts leak-proof grinding).
• Dustproof Electrical Cabinet: IP55 dustproof & waterproof rating (cleanroom-adapted) with built-in dehumidifier (protects electrical components from moisture); touch panel design (precise operation, no mechanical key wear).

Working Principle

Adopts the "low-speed revolution + precise rotation" precision grinding principle. The 7.5KW energy-saving motor drives the aluminum turntable for low-speed revolution. High-precision quiet nylon gears drive four small barrels for reverse low-speed rotation, generating gentle and uniform dual centrifugal force.

Ultra-precision parts and micro-abrasives form a low-density, gentle grinding zone under centrifugal force. Abrasives perform light, all-round grinding on parts, removing burrs and chamfering while maximizing dimensional accuracy and surface finish-avoiding deformation and scratches from high-speed grinding.

Compared to traditional equipment, grinding force is easily controllable. Precise speed adjustment enables gradual processes from micro-deburring to mirror polishing, meeting high requirements of ultra-precision parts.

Equipped with an energy-saving imported inverter + touch speed control panel (speed accuracy ±0.5 RPM), supporting micro-speed grinding (5-20 RPM) for ultra-precision/ultra-thin parts (no vibration or jamming at low speeds).

Touch panel functions include grinding time preset, speed display, grinding mode selection, and emergency stop. It can store 3 sets of commonly used grinding parameters for one-click recall, saving setup time.

Comprehensive safety protection system: two-way travel switch interlock, barrel cover unclosed protection, grinding fluid level alarm, and equipment tilt protection (equipment won't start if cover is loose; automatic alarm for low fluid level; immediate shutdown if tilted-eliminating equipment failure and part damage). Low-voltage control ensures safe operation, adapting to cleanroom electrical safety requirements.

Installation Requirements
1.Place on a level epoxy floor in cleanrooms; adjust leveling feet for full horizontality (no vibration). Use anti-static rubber pads between feet and floor to prevent static buildup.
2.Test motor winding insulation resistance with a 500V megohmmeter (≥0.5 MΩ; ensure good insulation to avoid static from leakage).
3.Connect to 380V three-phase industrial power (stable voltage) with an independent switch. Ensure turntable rotates clockwise (top view) with reliable grounding (ground resistance ≤3Ω, anti-static grounding required).
4.Conduct a 10-minute no-load test after installation (check for abnormal noise/vibration; verify touch panel accuracy) before formal use.

Later Adjustment
1.Inspect motor belt tension every 400 operating hours (fine-tune via precision screw mechanism). Replace worn belts with anti-static ones to prevent static.
2.Ultra-fine stainless steel barrel tilting chain: adjust tension via micro-tension pulley (adjust gently to avoid chain breakage from over-tightening).
3.Regularly check the sealing performance of the spin-on cover. Adjust fine-tuning screws at the barrel ends if leakage occurs to ensure tight fitting and prevent grinding fluid splatter.

Operation Steps
1.Power on, unlock the touch panel. Select stored grinding parameters or manually set speed and time. In manual mode, adjust the barrel to 5° forward tilt via inching switch and unscrew the spin-on cover.
2.Pre-treat workpieces (ultra-clean degreasing, anti-static treatment). Load workpieces and micro-abrasives at a 1:3 ratio into separate partition grids (one part type per grid to avoid mixing), filling 60% of each grid's volume. Add ultra-precision grinding agent and deionized water (just submerging materials), then tighten the cover securely.
3.Start the equipment to run at preset low speeds. Shut down every 60 minutes of continuous operation to ventilate and cool the barrel (prevents aging of the food-grade polyurethane liner).
4.After grinding, tilt the barrel slowly via inching switch to discharge materials into a receiving trough with ultra-fine filters (precise separation of parts and abrasives). Clean the separated parts immediately with ultra-pure water.

Daily Maintenance
1.Lubricate all bearings with anti-static calcium-based grease after 300 operating hours. Clean bearings regularly with lint-free cloth to prevent dust/micro-abrasive ingress.
2.Clean the barrel interior, partitions, and receiving trough with deionized water after daily use; dry with lint-free cloth and conduct anti-static treatment on the polyurethane liner (prevents micro-parts from static adsorption). Replace scratched acrylic door panels promptly.
3.Open the electrical cabinet weekly: clean dust with a cleanroom air blower, check dehumidifier operation and terminal tightness. Calibrate the touch panel and inverter monthly to ensure precision.
4.For cleanroom use: clean the equipment surface daily with cleanroom-compatible materials; regularly inspect anti-static performance. For long-term storage: remove abrasives/grinding fluid, rust-proof and anti-static treat metal parts, power off, and cover with a cleanroom dust cover.

Suitable for micro-deburring, chamfering, and mirror polishing of ultra-precision, ultra-thin, micro-sized parts-including stainless steel micro-components, titanium alloy precision parts, ceramic parts, and plastic precision parts-used in medical devices, electronic components, precision instruments, and aerospace industries.
Ideal for cleanrooms and precision processing workshops, delivering high surface finish and consistent dimensional accuracy after grinding.

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