RHJC is a direct source manufacturer with 20+ years of precision engineering experience, operating an ISO9001/CE-certified facility. We supply overseas dental supply distributors, clinic chains, and dental laboratories requiring stable product margins, reliable supply chains, and low warranty return rates.
True Concentricity (<0.02 mm Runout): Precision-ground internal spindles ensure zero bur wobble, preventing chipped zirconia crowns and hand fatigue during continuous milling sessions.
Thermal Management & Low Stalling: High-grade copper windings and optimized heat dissipation prevent handpiece overheating, maintaining stable torque (up to 9.2 N.cm) even under heavy cutting pressure.
Component-Level Spare Parts Availability: We do not force you to replace complete handpieces. We supply exact-fit bearings, carbon brushes, and chuck assemblies to support your local after-sales maintenance.
Factory-Direct Margins & OEM Support: Eliminate middleman markups. We support flexible sample orders for bench testing, low trial MOQs, and reliable OEM private labeling (laser-marked logos and custom packaging).
Note: Use the matrix below to match specific laboratory workloads. Click any product card above for detailed voltage and collet specifications, or use our top Download menu to review the complete engineering PDF.
| Series / Model | Max. Speed & Power | Motor Type | Max. Torque | Key Features & Foot Control | Primary Dental Lab Application |
| PRIME SENSE A9 (New) | 55,000 RPM / 240W | Brushless | 8.5 N.cm | Wireless Bluetooth pedal; high torque starting at 500 RPM | Heavy-duty zirconia cutting, sprue trimming & continuous precision lab work |
| Prime 926 | 60,000 RPM / 250W | Brushless | 9.2 N.cm | Wired variable pedal; dual voltage 110V/220V compatible | Flagship high-speed lab milling, hard alloy grinding & heavy production |
| Prime 407-50EI | 50,000 RPM / 230W | Brushless | 8.0 N.cm | Digital display console; ceramic bearings (1.5x life) | E-Type motor for clinical & lab prep; compatible with straight & contra-angle heads |
| Prime 1210D+1210BE | 35,000 RPM / Coreless | Brushless | High Torque | Portable 2600mAh battery; 20+ hours continuous run time | Flexible clinic operation, mobile dental treatments & portable lab adjustments |
| Renhe 119 Series | 35,000 RPM / 65W | Carbon Brush | 2.8 N.cm | Ceramic bearings; waterproof/dustproof 35EI & standard 119S options | High-volume plaster trimming, denture repair & budget-friendly tender bids |
Q1: What warranty terms and after-sales support do you provide for bulk shipments?
A: We back all commercial orders with a 1-year direct factory warranty backed by comprehensive multi-stage aging and performance testing before dispatch. To support your regional distribution and local customer service, our engineering team provides responsive technical guidance and long-term after-sales support for all wholesale shipments.
Q2: Can we test a single sample unit before committing to a commercial volume contract?
A: Yes. We actively encourage distributor bench testing. You can order individual demo units to verify handpiece concentricity, torque retention, and temperature levels against your current brand supply.
Q3: How do you handle private label OEM requirements?
A: We provide practical OEM branding support for distributors and established tool brands. This includes laser-marking your registered brand logo onto handpieces and control console housings, configuring appropriate regional power plug standards (US, EU, UK, AU), and providing tailored custom packaging for wholesale distribution.
Looking to optimize your dental tool product catalog or secure a dependable manufacturing partner?
Examine Specs & Quick Quote: Click any product card above to inspect full handpiece dimensions, chuck types (2.35mm / 3.0mm), and operational weight. You can click the "Quick Quote" button directly inside any product page for instant model-specific inquiries.
Download Full Catalog: Visit our "Download" page in the top navigation to get the complete engineering specification PDF.
Submit Batch Inquiry: Fill out the "Leave a message" form below with your required models, target quantities, or custom OEM requirements. Our sales engineering team will respond with factory wholesale pricing within 24 hours.
