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Cheapest CNC Internal Thread Grinders Sk7620c
US$50,000.00
1-4 Pieces
US$45,000.00
5-9 Pieces
US$40,000.00
10-19 Pieces
US$30,000.00
20+ Pieces
Product profile
Customization
AvailableAfter-sales Service
Overseas ServiceWarranty
12 Months Since ShipmentModel NO.
SK7620CType
Internal Grinding MachineProcessing Object
ThreadAbrasives
Grinding WheelControlling Mode
CNCAutomatic Grade
AutomaticCylindrical Grinder Type
MetalPrecision
High PrecisionCondition
NewApplication
Cylindrical Worms with Za, Zn, Zi, Zk, Zc1 ToothModel
Sk7620cService
Engineers Can Installation and TrainingMax.Mounting Diameter
300 mmMax.Center Distance
125mmGrinding Diameter
22-200mmMax.Grinding Length
125mmModule Range
1-24mmHelix Angle
±12°Thread Start Number
1-45Max.Wheel Linear Speed
42000 R/MinMax.Wheel Diameter
100mmMachine Size
2300×1600×2000mmCNC System
Siemens 828dTransport Package
It's Suitable for Long Distance TransportationSpecification
2300×1600×2000MMTrademark
RefineOrigin
ChinaProduction Capacity
100 Sets/YearKey features
Siemens 828D CNC Control: Features Siemens 828D controller with 3 linked axes for high-precision automated grinding cycles.
High-Speed Motorized Spindle: Equipped with high-frequency motorized spindle reaching up to 24,000 RPM for efficient processing.
Automatic Self-Compensation: Special soft program enables automatic grinding cycles and dressing amount self-compensation.
Stable Cast Iron Structure: Bed and table made of high-strength cast iron with multi-aging treatment and hand scraping.
Comprehensive Warranty: Standard 12-month warranty with optional extended coverage up to 36 months.
Global After-Sales Support: Provides 24/7 technical assistance, spare parts supply, and on-site or remote training.
Company profile

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2013-09-30Nearest Port: Dalian Port, Qingdao Port, Tianjin PortAverage Response Time: ≤4.21hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAP, CIP, CPT, FCA
AI-Powered supplier vetting
SummaryDalian Refine Tech Co., Ltd. is a China-based limited company identified as both a trading company and manufacturer/factory. It manufactures and supplies metal-processing machinery, including vertical lathes, CNC and manual lathes, boring machines, machining centers, gear hobbing machines, and radial drilling machines. The supplier reports ISO 9001 and ISO 14001 certification, 5 production lines, 11–20 quality-control staff, and 6–10 years of R&D-engineer experience. It states that 90% of sales are exports, exports to more than 60 countries, and has operated exports since 2013. The supplier describes one-stop service and production-problem support, but the provided information does not substantiate detailed after-sales procedures or customization examples. Customer evidence includes one recorded trade transaction and one named buyer, while broader customer references are not provided.
Supplier typeThe supplier is explicitly classified as both a trading company and manufacturer/factory, and describes itself as integrating R&D, production, and sales of machine tools for metal machining. Its listed business areas include industrial equipment, manufacturing machinery, and related tools.
CertificationsThe supplier reports holding ISO 14001 and ISO 9001 management-system certifications. These are explicit certification claims in the provided supplier information.
R&D capabilityThe supplier reports integrating R&D with production and sales, describes ongoing technological and management innovation, and lists 6–10 years of R&D-engineer experience. Its expanded product range includes CNC equipment, machining centers, boring machines, gear hobbing machines, and radial drilling machines, supporting an established technical-development capability.
Production capacityThe supplier identifies itself as a machine-tool manufacturer/factory, reports 5 production lines, and describes 15 years of specialization in vertical-lathe manufacturing. Its product scope covers multiple metal-processing machine categories, indicating established production breadth.
Client casesThe supplier states that its products have been exported to more than 60 countries, and one trade record identifies WELLTRON AUTOMATION as a buyer for a CNC machine. The provided evidence supports international customer reach, but only one named buyer and one recorded transaction are documented.
Product Q&A
Q:What CNC system does the SK7620C use?
A:
The machine uses the Siemens 828D NC controller, which controls 3 axes with 2 linked axes for precise operation.
Q:What is the maximum mounting diameter?
A:
The SK7620C supports a maximum mounting diameter of 300mm.
Q:What is the warranty period?
A:
The standard warranty is 12 months or 2,000 operating hours, whichever comes first, with optional extended coverage up to 36 months.
Q:Does the machine offer automatic functions?
A:
Yes, it features automatic grinding cycles, wheel dressing cycles, and dressing amount self-compensation via special software.
Q:What industries can use this machine?
A:
It is suitable for aerospace, automotive manufacturing, tool and die making, and oil and gas sectors requiring high-precision threads.
Send Inquiry
*To:
Dalian Refine Tech Co., Ltd.
Dalian Refine Tech Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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