CNC Internal Thread Grinder Machine for Ball Screw Grinding

• Customization: Available
• After-sales Service: Available
• Warranty: 2 Years
• Model NO.: SK7620C
• Process Usage: Metal-Cutting CNC Machine Tools, CNC Non-Conventional Machine Tools, Metal-Forming CNC Machine Tools
• Movement Method: Contour Control
• Control Method: Closed-Loop Control
• Numerical Control: CNC/MNC
• Processing Precision: 0.01~0.02(mm)
• Performance Classification: High-End CNC Machine Tools
• Certification: CE, ISO 9001
• Condition: New
• Max. Work-Piece Length: 200mm
• Max. Grinding Diameter: 200mm
• Min.Grinding Diameter: 22mm
• Max. Grinding Length: 125mm
• Pitch Error: 0.003mm
• Surface Roughness: Ra0.32um
• Transport Package: Wooden Packing
• Specification: standard
• Trademark: GOLP
• Origin: China
• Production Capacity: 30 Sets Per Year
• Package Size: 230.00cm * 160.00cm * 200.00cm
• Package Gross Weight: 5000.000kg

Product Description

SK7620C is a precision internal thread grinding machine for grinding double-arc ball tracks of steering worm nuts.

Application industry
Δ Reducer Industry Δ Ballscrew Industry Δ Tooling & Measuring Industry Δ Automobile Industry Δ Air compressor Industry

Max. work-piece length	200mm
Max. grinding diameter	200mm
Min. grinding diameter	22mm
Max. grinding length	125mm
Pitch range	1~24mm
Lead angle range	±12°
Thread start number	1-45(any)
Max.wheel spindle speed	24000r/min
Max. wheel diameter	φ100mm
Min.wheel diameter	φ20mm
Main machine net weight	Approx. 5000kg
Main machine net dimension	2300*1600*2000mm
Grinding pitch accuracy obtainable
Pitch error	0.003mm
Accumulated pitch error over 25mm	0.005mm
Accumulated pitch error over 100mm	0.008mm
Pitch diameter variation	0.01mm
Surface roughness	Ra0.32um

* The minimum grinding diameter 22mm is recommended diameter considering wheel spindle max. speed.  

                         Four wire internal thread                                                Tee piece internal thread                                                cup lid internal thread 

                     Reducer internal thread                                                         Ballscrew internal thread                                               Tooling & Measuring  internal thread


Q:What's your payment terms?
A:T/T,L/C,Paypal,Western Union etc.

Q:How long is the product warranty?
A: 24 months

Q: Are you a trading company or a manufacturer?
A: We are a professional manufacturer. Our products have been exported to Asia, South America, Africa, and have developed a good world wide reputation.  

Q: What kind of product certification do you have?
A: All our products have passed ISO9001 and CE certifications. We have strict quality inspection process before leaving our factory in order to offer the best quality machines to our customers.

Q: Do you have after sales service?
A: Yes, we have special service team which will offer you professional guidance, or On-site installation in customer Factory.

Q: Do you test all your goods before delivery?
A: Yes, we have strict quality inspection process including a load test for every machine before leaving our factory.