What is the delivery time for orders?

The standard delivery time is 30 days. Peak season lead time is one month, while off-season lead time is within 15 workdays.

What payment methods do you accept?

We accept T/T (Telegraphic Transfer) and L/C (Letter of Credit) for payments.

What types of springs do you supply for railways?

We supply Helical Coil Springs, Compression Springs, Volute Springs, and Leaf Springs for bogie suspension, coupler draft gear, and air brake cylinders.

Hot Sales! Heavy Duty Train Compression Springs

Name: Hot Sales! Heavy Duty Train Compression Springs
Brand: Jiangsu Tedrail Industrial Co., Ltd.
SKU: 821840825

Jiangsu, ChinaJiangsu Tedrail Industrial Co., Ltd.

US$1.00-100.00

1,000 Pieces

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Function

Buffer

Material

Steel

Model NO.

TR-0009

Usage

Industrial, Bogie

Load Type

Compression

Production Process

Cold Roll

Shape

Coil

Payment

T/T,L/C

Delivery Time

30days

MOQ

1000

Wire Diameter

Custormized

Packed

Wood Case

Transport Package

Wood Case

Specification

custormized

Trademark

tedrail

Origin

China

HS Code

8602900000

Production Capacity

100, 000 Tons/ Year

Key features

Customizable Wire Diameter: Wire diameter can be customized according to specific customer requirements and drawings.

Wide Material Selection: Supplies various materials including Silico-Manganese and Chrome-Vanadium steel per DIN, BS, JIS, and ASTM standards.

AAR Standard Compliance: All springs can be supplied with AAR standards, including primary suspension and side springs.

Large Dimension Capacity: Capable of producing springs with wire diameter up to 80mm, OD up to 500mm, and height up to 1200mm.

Diverse Spring Types: Offers Helical Coil, Compression, Volute, and Leaf springs for railway bogie and coupler applications.

Professional Railway Expertise: High-tech enterprise with experienced design team for railway passenger cars, metro, and freight systems.

Global Export Experience: Products exported to USA, South Africa, Brazil, and other regions since 2008.

Flexible Payment Terms: Accepts T/T and L/C payments with a minimum order quantity of 1000 units.

Company profile

Jiangsu Tedrail Industrial Co., Ltd.

Jiangsu, China

Business Type: Manufacturer/FactoryExport Year: 2008-01-01Nearest Port: ZHANGJIAGANG, SHANGHAIAverage Response Time: >24hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DDP, DAP, FCA

AI-Powered supplier vetting

SummaryJiangsu Tedrail Industrial Co., Ltd. is identified as a Chinese manufacturer/factory specializing in railway-related products, including carbodies, passenger coaches, couplers, freight cars, train parts, and cold-bending parts. The supplier reports more than 10 production lines, 50 years of combined R&D-engineer experience, 11–20 quality-control staff, and stated production capacities across several railway product categories. It reports ISO 9000 and ISO 9001 certification and describes multiple material and product testing methods. Export activity is indicated by 90% export sales, self-managed import/export rights, and exporting activity since 2008. Evidence is insufficient to verify financial strength, customization performance, after-sales capability, or a substantial customer-case history. The factory address differs slightly between records, which should be clarified during due diligence.

Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory and a limited company located in Jiangsu, China. Its stated commercial scope and product keywords are concentrated in industrial equipment and railway products, including carbodies, couplers, freight cars, train parts, and interiors.

CertificationsThe supplier reports holding ISO 9000 and ISO 9001 certification. The slices do not provide certificate numbers, issuing bodies, validity dates, or scope, so the existence is reported but its current validity cannot be independently assessed.

R&D capabilityThe supplier reports 50 total experience among R&D engineers and describes a technical team experienced in railway-product design, manufacture, and inspection. It also lists chemical, metallographic, mechanical, ultrasonic, magnetic, impact, and hardness testing, supporting technical competence, but no explicit evidence of patented technology, new-product development, or measurable innovation outcomes is provided.

Production capacityThe supplier reports more than 10 production lines, 11–20 quality-control staff, and stated annual capacities of 200 carbodies, 1,200 coupler sets, 500 freight cars, 10,000 train-part sets, and 3,000 tons of aluminum profiles. Its 90% export-sales share and self-managed import/export rights further indicate established production and export operations.

Product Q&A

Q:What materials are available for the springs?

We supply Silico-Manganese Steel (e.g., 38Si7, 54SiCr6) and Chrome-Vanadium Steel (e.g., 55Cr3, 50CrV4) complying with DIN, BS EN, JIS, and ASTM standards.

Q:Can the wire diameter be customized?

Yes, the wire diameter is customizable. We can produce springs with wire diameters up to 80mm based on customer drawings.

Q:What is the minimum order quantity (MOQ)?

The minimum order quantity is 1000 units.

Q:What are the standard dimensions for the springs?

Standard specifications include wire diameter up to 80mm, outside diameter up to 500mm, and free height up to 1200mm.

Q:Are the springs compliant with AAR standards?

Yes, all springs can be supplied with AAR standards, including primary suspension (load) D-springs, side springs, and dual rate springs.