Resin Diamond Grinding Head
PDH resin diamond discs have 3 grits and two sizes. 2.35mm HP shanks fit low-speed lab handpieces, optimal 6000 RPM (max 20000 RPM). Dry polish zirconia, glass ceramic and cast porcelain, flexible resin prevents scratches and edge cracks.
PDH Resin Diamond Grinding Head is a premium multi-grit finishing abrasive tool independently developed for global dental laboratories, crafted with resin-bonded diamond composite material and standardized 2.35mm HP stainless steel shank, fully compatible with all mainstream low-speed dental micromotor straight handpieces widely used in dental labs worldwide. Unlike traditional soft polishing stones with insufficient cutting force for rigid ceramics, our PDH resin diamond grinders deliver efficient trimming and mirror surface shine directly through dry processing, eliminating extra cooling water preparation and post-workpiece deep cleaning steps, which greatly boosts technicians’ finishing efficiency and prevents liquid residue contamination on high-value zirconia, porcelain and glass ceramic restorations.
Manufactured via precise high-temperature compression molding craft, the grinding head features graded grit textures spanning coarse, medium and fine levels, paired with soft elastic resin substrate that balances powerful material removal and ultra-smooth surface refinement perfectly. When trimming and bright polishing hard all-zirconia, lithium disilicate glass ceramic and cast porcelain prostheses, the resin-diamond body exerts steady uniform pressure without scratching delicate restoration surfaces; its soft buffer structure avoids edge chipping or hidden micro-crack damage, enabling step-by-step progression from rough surplus shaping to mirror gloss within one complete product line.
We provide a practical dual-size disc portfolio including 22*3mm compact disc and 26*2mm wide disc configurations to fit all multi-stage polishing workflows: wide 26*2mm discs handle broad occlusal and facial surface bulk material removal for crowns and bridges; slim 22*3mm discs refine crown margins, interdental gaps and narrow curved contours for intricate detailed finishing. Every grinding disc undergoes strict concentricity testing before shipment to guarantee low-vibration stable rotation within recommended RPM of 6000, with maximum safe operating speed capped at 20000 RPM.
As an experienced dental ceramic polishing consumable manufacturer with long-term diamond resin abrasive formula R&D expertise, we enforce rigorous raw material screening and finished dimensional tolerance checks. This three-grit PDH resin diamond series supports full sequential polishing workflows from initial surplus trimming to final mirror gloss without switching disparate tool sets, serving as a high-efficiency essential consumable for small custom dental workshops and large-volume centralized prosthetic production facilities across the globe.
- Standard 2.35mm HP shank, universal compatibility with most dental lab low-speed straight handpieces
- 3-tier graded grit system: coarse / medium / fine for full-stage ceramic trimming & polishing
- Water-free dry grinding design, no cooling water required for daily laboratory operation
- Reinforced resin-diamond matrix, balances sharp cutting power and flexible pressure buffering
- Dual disc size lineup: 22*3mm & 26*2mm for marginal detail and large-area grinding tasks
- Precision concentricity inspection ensures stable low-vibration rotation up to 20000 RPM max
- Water-free dry grinding cuts cooling setup cost and lengthy post-finish cleaning labor
- Step-by-step three-grit design removes need for multiple separate rough/finish polishing tool sets
- Flexible resin buffer eliminates ceramic micro-crack and edge breakage to lower workpiece scrap rates
- Consistent high-gloss output improves final restoration aesthetic quality for clinical delivery
- Firmly embedded diamond grit resists shedding, extends service life to reduce frequent tool replacement expenses
- Full zirconia crown, bridge, veneer multi-stage shaping and mirror bright polishing
- Lithium disilicate glass ceramic & cast porcelain contour trimming and high-gloss finishing
- All-ceramic framework surplus removal, occlusal adjustment and curved surface brightening
- Precise marginal refinement and narrow interdental gap polishing for ceramic prostheses
- Full grit & full-size ready stock supporting bulk wholesale and OEM private label customization
- Piece-by-piece QC verification for uniform cutting performance and accurate concentricity
- Direct factory pricing with flexible minimum order quantities for global dental distributors and labs
- Fast production turnaround and dedicated professional after-sales support for cross-border independent store merchants
Q1: What shank size do these grinding heads use?
A: Standard HP 2.35mm stainless steel shank, fits all standard dental lab low-speed micromotor straight handpieces.
Q2: Is cooling water required during operation?
A: No extra cooling water is necessary; the grinder completes trimming and polishing through dry grinding alone.
Q3: What is the safe rotation speed range?
A: Recommended working RPM:6000, maximum allowable rotational speed:20000 RPM.
Q4: Can custom branded packaging be arranged for bulk orders?
A: Yes, customized OEM box packaging and tailored specification options are available for large quantity wholesale orders
