What payment terms are accepted?

Accepted payment terms include LC, T/T, PayPal, Western Union, and X-Transfer.

Does the machine provide technical support?

Yes, global support includes 24/7 technical assistance, spare parts supply, and on-site or remote operation and maintenance training.

What is the precision level of the grinding machine?

The machine is classified as High Precision, utilizing servo motors, precision ball screws, and a Siemens CNC system for accurate results.

Heavy-Duty External Thread Grinder for Ball Screw Nuts Sk7640

Name: Heavy-Duty External Thread Grinder for Ball Screw Nuts Sk7640
Brand: Dalian Refine Tech Co., Ltd.
SKU: 1986362351

Liaoning, ChinaDalian Refine Tech Co., Ltd.

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

Available

After-sales Service

Overseas Service

Warranty

12 Months Since Shipment

Model NO.

SK7640

Type

Internal Grinding Machine

Processing Object

Thread

Abrasives

Grinding Wheel

Controlling Mode

CNC

Automatic Grade

Automatic

Cylindrical Grinder Type

Metal

Precision

High Precision

Condition

New

Application

Cylindrical Worms with Za, Zn, Zi, Zk, Zc1 Tooth

Model

Sk7640

Service

Engineers Can Installation and Training

Max.Mounting Diameter

600 mm

Max.Center Distance

320mm

Grinding Diameter

150-400mm

Max.Grinding Length

200mm

Module Range

0.5-24mm

Helix Angle

±12°

Thread Start Number

1-45

Max.Wheel Linear Speed

42000 R/Min

Max.Wheel Diameter

125mm

Machine Size

3300×2340×2500mm

CNC System

Siemens 828d

Transport Package

It's Suitable for Long Distance Transportation

Specification

2300×1600×2000MM

Trademark

Refine

Origin

China

Production Capacity

100 Sets/Year

Key features

Siemens CNC Control: Equipped with Siemens 828d system controlling 4 axes for high precision.

Multi-Tooth Form Grinding: Grinds cylindrical, conical, triangular, buttress, trapezoid, and circular threads.

High Rigidity Construction: Bed, table, and wheel stock made from quality iron cast with multi-aging treatment.

Automatic Dressing: Diamond roller dressing with automatic compensation for consistent accuracy.

Precision Servo Drive: Z and X axes driven by servo motors and precision ball screws for accuracy.

High-Speed Spindle: Motorized spindle with frequency converter and water cooling for stability.

Versatile Applications: Ideal for ball screw nuts, thread ring gauges, and various industrial sectors.

Global After-Sales Support: 24/7 technical assistance, spare parts, and on-site/remote training available.

Company profile

Dalian Refine Tech Co., Ltd.

Liaoning, China

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 is the warranty period for the machine?

Standard warranty is 12 months since shipment or 2,000 operating hours, whichever comes first. Extended warranty up to 36 months is optional.

Q:What types of threads can this machine grind?

It can grind internal threads with cylindrical, conical, triangular, buttress, trapezoid, and circular tooth forms, including ball screw nuts and thread ring gauges.

Q:What is the maximum mounting diameter supported?

The SK7640 model supports a maximum mounting diameter of 600 mm.

Q:Is customization available for this machine?

Yes, custom configurations are available upon request, including specific applications and technical parameters.

Q:What is the average lead time for delivery?

Peak season lead time is 1-3 months, while off-season lead time is one month.