
NGM-4.4 rail profile grinder is a professional tool for profile grinding rail welded joints and rail sides with characteristics of automatic feed, controlling of the grinding amount, without tilting when grinding sides and so on. The rail profile grinder is the necessary machine for the railway official, the engineering department for mine construction and maintenance work.
There is gasoline engine type and electric type for the rail profile grinder. It has features as follow:
● High efficiency and easy operation
● Safe and reliable
● Light weight

Product Specification
|
Gasoline engine power |
4.4KW (6PS)/4500 rpm |
|
Wheel speed |
5000 rpm |
|
Grinding wheel feed stroke |
50mm |
|
Feed accuracy |
0.1mm |
|
Profile wheel span |
1000 mm |
|
Host weight |
64 kg |
|
Dimensions |
1382x680x840 mm |
Application
Railway welding repair: Grind the rail welding joints, eliminate weld beads and unevenness.
Line maintenance: Repair the wear and scratches on the side of the rails to extend their service life.
New line construction: Pre-process rail profiles to ensure the accuracy of track laying.
Turnout maintenance: Precisely polish the complex contours of the turnout area to enhance the stability of train passage.
Maintenance Of The Rail Profile Grinder
After the construction of each shift, clean the exposed linkage guide bar and transmission chain of the yaw manoeuvring mechanism; the transmission screw and transmission chain of the transverse moving mechanism and other components, and add mechanical lubricant to their sliding surfaces.
Every 20 hours of operation of the equipment to the external lubricant cups filled with grease not less than once.

Company Information
Henan Qiangli Machinery Co., Ltd. is a technology-based enterprise integrating the research and development, production and sales of railway line maintenance machinery. 30 years of production experience, OEM factory.
Currently hold three national invention patents and multiple utility model technology patents. Our company has passed the ISO 9001 quality management system certification as well as the international CE certification.
Supplied products are widely used in various aspects of railway maintenance, including rail grinding, cutting, drilling, tamping, track wear inspection, and the installation and removal of rail bolts and nuts.


Transport Packaging and Delivery After Sales
Transport Package: Packed in Wooden Crates, Wooden Pallets.
Delivery & After-sales: After the contract is signed, the company arranges production and delivery, and also provides after-sales service and technical support to ensure customer satisfaction.

Information for Procurement Officers
- Product Model: NGM-4.4 Rail Profile Grinder (Available in Gasoline and Electric Versions)
- Main Material: High-strength aluminum alloy frame, hardened steel transmission components.
- Customization: Yes, including voltage/frequency adaptation, special rail profiles, branding, OEM/ODM services. Customization process: Submit technical specifications → Engineering review (3–5 days) → Quotation → Sample production (if required) → Mass production.
- Certifications: ISO 9001 Quality Management System Certification, CE Marked.
- Company Overview: Henan Qiangli Machinery Co., Ltd., a technology-based enterprise with over 30 years of experience in R&D, production, and sales of railway maintenance machinery. Holds multiple national invention patents and utility model patents.
- MOQ: 1 unit (sample order accepted); volume discounts available from 5 units.
- Packaging: Export-standard wooden crate or fumigated wooden pallet (ISPM 15 compliant).
- Lead Time: 7–15 working days after order confirmation.
- Payment Terms: T/T (30% deposit, 70% before shipment) or L/C at sight.
- Shipping Terms: FOB Qingdao / CIF / DDP (as per buyer request).
- After-Sales Support: 12-month warranty; spare parts supply guaranteed for 5+ years; lifelong technical support.
📧 Email: elinachina@126.com
📞 WhatsApp: +86 15617710309
🌐 Website: www.qlrailwaymachine.com
Hot Tags: rail profile grinder, China rail profile grinder manufacturers, suppliers, factory
