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Dental Machinery Grinding Needles Precise Medical Hardware Accessories
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Dental Machinery Grinding Needles Precise Medical Hardware Accessories
| Place of Origin | GuangDong Dongguan |
| Brand Name | SITUO |
| Certification | ISO9001 & TS16949 |
| Model Number | ST-110004 |
Product Details
Material:
Stainless Steel
Category:
Long Shaft
Surface Treatment:
Passivation
Processing Technology:
CNC Turning
Sample Period:
10 To 15 Days
Precision:
Min0.001
Head Shape:
Communication
Durability:
High
Manufacturer:
Situo
Usage:
Machine
Origin:
China
Packing:
Carton
Weight:
Lightweight
Size:
1.0-30.0mm
Productname:
Medical Hardware
Highlight:
dental machinery grinding needles
,grinding needles Precise
,30MM Medical Hardware
Payment & Shipping Terms
Minimum Order Quantity
1PCS
Price
5-10 USD per item
Packaging Details
Communication
Delivery Time
Communication
Payment Terms
T/T
Supply Ability
10000PCS per day
Product Description
Dental Machinery Grinding Needles - Precise Medical Hardware Accessories
Stainless steel dental machinery grinding needles - Precise medical hardware accessories
The core of processing grinding tool pins for dental equipment lies in the triple guarantee of micron-level precision, high surface finish and long service life & reliability.
Core Processing Difficulties
- Extremely Strict Geometric Precision: Dimensional tolerances usually require ±0.005~0.01mm, roundness and cylindricity controlled within 0.005mm, with extremely high requirements for coaxiality and radial runout.
- Harsh Surface Quality Requirements: Surface roughness must reach Ra ≤ 0.8μm (high-end models require Ra ≤ 0.2μm) with no tool marks, scratches or micro-cracks allowed.
- Material and Heat Treatment Challenges: Made of 304/316L stainless steel or 40Cr/bearing steel, requiring precise control of quenching and tempering parameters to ensure hardness HRC45~52 and toughness balance.
- Difficulty in Mass Production Consistency: Ensuring complete consistency in size, finish and hardness of each pin in mass production.
Recommended Processing Methods and Process Routes
Typical Process Route: Material preparation → CNC turning/swiss-type lathe finishing → heat treatment (quenching & tempering) → centerless grinding/double-surface grinding → surface treatment (hard chrome plating/QPQ/electropolishing) → fine lapping/roller burnishing → full inspection and warehousing
Key Processes and Equipment
| Process | Core Equipment | Process Key Points | Target Parameters |
|---|---|---|---|
| Precision Turning | Swiss-type lathe/dual-spindle CNC lathe | One clamping for outer diameter, steps, chamfers and grooves; carbide coated tools; separate rough and finish machining | Diameter tolerance ±0.01mm, surface Ra1.6~3.2μm |
| Fine Grinding | High-precision centerless grinder | Control wheel wear and feed; online compensation; calibration every 2 hours | Cylindricity ≤0.005mm, Ra ≤ 0.8μm |
| Double-surface Grinding | Double-surface grinding machine | Ensure flatness and perpendicularity; automatic feeding | Perpendicularity ≤0.02mm, Ra0.3~0.5μm |
| Heat Treatment | Vacuum furnace/induction hardening furnace | Vertical charging and cooling; low-temperature tempering for stress relief | Hardness HRC45~50, no deformation or cracking |
| Surface Treatment | Plating line/QPQ equipment | Electropolishing and activation before plating; double-layer chrome plating or QPQ | Uniform and wear-resistant coating, corrosion resistance |
| Fine Lapping/Burnishing | Lapping machine/roller burnishing machine | Mechanical extrusion to eliminate micro defects; improve finish | Ra ≤ 0.2μm, improved surface hardness |
Solutions to Difficulties
- Precision Control: Adopt high-rigidity machines and precision fixtures, optimize cutting parameters, install online measurement compensation, and establish tool life management system.
- Surface Finish Guarantee: Add lapping or burnishing after fine grinding, use diamond grinding wheels, and control cutting heat and built-up edge.
- Heat Treatment Deformation: Use vacuum heat treatment, vertical suspension charging, and multiple aging treatments to strictly control heating and cooling rates.
- Stainless Steel Machining: Use special cutting fluid, reduce cutting speed, increase feed rate, and avoid adhesion and work hardening.
Material Selection Recommendations
- 304/316L Stainless Steel: Suitable for scenarios requiring biocompatibility and corrosion resistance. Focus on solving adhesion and work hardening during processing.
- 40Cr/Bearing Steel: Suitable for high hardness and wear resistance requirements. Heat treatment must be strictly controlled to prevent deformation and cracking.
Key Quality Inspection Points
- Dimension and Form & Position: Measure diameter, roundness, cylindricity, coaxiality and perpendicularity with projector, micrometer and roundness measuring instrument.
- Surface Quality: Test Ra value with roughness tester; inspect surface defects with magnifier or microscope.
- Performance Testing: Measure hardness with Rockwell hardness tester; verify corrosion resistance with salt spray test; conduct non-destructive testing for internal defects if necessary.
In summary, the processing of dental grinding pins requires the trinity of precision equipment + elaborate processes + strict quality control. The core is to control micron-level precision and high surface finish, while taking into account material reliability and mass production stability.
Our Manufacturing Capabilities
We have introduced advanced equipment and technology from Japan and Germany (CNC 5-axis and 6-axis machines) to better serve our customers' needs.
Our maximum processing outer diameter is 60mm, and the minimum control tolerance is 0.001mm. We have Japanese CNC Tsugami, CNC Citizen, multi-station cold extrusion forming machines, 500T press machines, casting equipment, and various process equipment.
Main Products:
Stainless steel screws, carbon steel screws, pins, rivets, nuts, eccentric nails, embedded parts, and other fasteners.
Business Type:
Factory / Manufacturer
Services:
CNC Machining, Turning and Milling, CNC Turning, Cold heading, Stamping, Assembly Service
Materials:
Aluminum: AL 6061-T6, 6063, 7075-T etc
Stainless steel: 303,304,304L,316L,316F,630,410,420,430, etc
Steel: 4140, Q235, Q345B,20#,45# 1215,12L14,1144,1006,1008,1010,1015,1018,10B21,1035,1065 etc.
Alloy steel: 5140,4135,4140,3435,5120,415,435,440 etc
Titanium: TA1,TA2/GR2, TA4/GR5, TC4, TC18 etc
Brass: C36000 (HPb62), C37700 (HPb59), C26800 (H68), C22000(H90),C27000,C51900,C11000,C3604,H62,H65 etc
Copper, bronze, Magnesium alloy, Delrin, POM, Acrylic, PC, etc.
Stainless steel: 303,304,304L,316L,316F,630,410,420,430, etc
Steel: 4140, Q235, Q345B,20#,45# 1215,12L14,1144,1006,1008,1010,1015,1018,10B21,1035,1065 etc.
Alloy steel: 5140,4135,4140,3435,5120,415,435,440 etc
Titanium: TA1,TA2/GR2, TA4/GR5, TC4, TC18 etc
Brass: C36000 (HPb62), C37700 (HPb59), C26800 (H68), C22000(H90),C27000,C51900,C11000,C3604,H62,H65 etc
Copper, bronze, Magnesium alloy, Delrin, POM, Acrylic, PC, etc.
Finishes:
Sandblasting, Anodize color, Blackenning, Zinc/Nickl Plating, Polish, Power coating, Passivation PVD, Titanium Plating, Electrogalvanizing, electroplating chromium, electrophoresis, QPQ(Quench-Polish-Quench), Electro Polishing, Chrome Plating, Knurl, Laser etch Logo, etc.
Drawing Formats:
STEP, STP, GIS, CAD, PDF, DWG, DXF etc or samples.
Tolerance:
+/-0.01mm ~ +/-0.05mm
Surface Roughness:
Ra 0.1~3.2
Quality Assurance
Our company has a total of 300 employees, including 20 technicians, 10 engineers, and 15 quality control personnel. We have over 300 pieces of equipment.
We implement 8S management and have passed ISO9001 and TS16949 automotive certifications.
Inspection Equipment: Complete inspection lab with Micrometer, Optical Comparator, Caliper Vernier, CMM, Depth Caliper Vernier, Universal Protractor, Clock Gauge, Internal Centigrade Gauge
Our Customers
Our customers include bo-sch, Foxconn, Motors, Husqvarna, Shimano, NVIDIA, DJI Drones, Siegenia, and Cater-pillar.
Product Gallery
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Contact Us at Any Time
13925509630
No. 9, Shi bi One Alley, Zhangmutou Town, Dongguan City, Guangdong Province
