Your Professional Die Springs Supplier
Zhuji Xuanyu Spring Co., Ltd. (formerly Zhuji Printing Machine Spring Factory) is a high-quality spring manufacturer with 28 years of professional experience, recognized as a pioneer and leader in China’s printing press and die-cutting machine industries. We are consistently dedicated to providing exceptional spring solutions for our clients.
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![Rectangular Die Springs]()
Rectangular Die SpringsRectangular springs are heavy-duty, high-load elastic components manufactured from square or rectangular cross-section wire through precision coiling processes and in strict compliance with -
![Yellow Die Springs]()
Yellow Die SpringsYellow mold springs are high-performance elastic components manufactured strictly in accordance with Japanese Industrial Standards (JIS). Their yellow marking represents the light load grade, -
![Red Die Springs]()
Red Die SpringsThe red mold spring is a high-performance elastic element manufactured in strict accordance with Japanese Industrial Standards (JIS). Its striking red marking represents the medium load rating, and -
![Brown Die Springs]()
Brown Die SpringsBrown mold springs are high-performance elastic elements manufactured in strict accordance with Japanese Industrial Standards (JIS). The brown marking represents the highest level of heavy load and -
![Green Die Springs]()
Green Die SpringsGreen mold springs are high-performance elastic elements manufactured in strict accordance with Japanese Industrial Standards (JIS). Their green color indicates a heavy load rating, and they are -
![Blue Die Springs]()
Blue Die SpringsThe blue mold spring is a high-precision elastic element manufactured in strict accordance with Japanese Industrial Standards (JIS). Its blue marking represents the light load level and is designed
Why choose us
Quality Control
We maintain a strict internal inspection process. Each batch of products undergoes multiple tests, including accuracy, pressure resistance, and service life. Key inspection data can be provided upon request.
Logistics Solutions
With extensive export experience, we can arrange sea freight or international express delivery (DHL, FedEx, etc.) and offer trade terms such as FOB Ningbo/Shanghai to ensure safe and efficient delivery.
Sales Market
We have established stable supply partnerships in Southeast Asia, Europe, North America, and the Middle East, and we have served customers from countries such as Germany, Japan, the United States, and India for many years.
Our Service
From order placement to shipment, we maintain close communication. You can track order progress at any time, and we can provide photos or videos of key production stages upon request, allowing you to monitor quality remotely.
Product Description
|
Style |
Spiral |
|
Color |
Customer's Demand |
|
Size |
Customized Sizes |
|
Surface treatment |
Electrophoresis/Nickel/zinc/chrome plated/heat treatment |
|
MOQ |
No MOQ for standard parts |
|
Packing |
Outer --Standard Carton Box |
|
Sample time |
3-7days |
|
Wire diameter |
0.2-80mm |
We’ve already touched on some of the advantages of using these types of springs, but they provide many other benefits, such as the following:
• Excellent performance in high-stress settings.
• Resistance to high temperatures.
• Available in several materials, including steel and chromium alloys.
• Variety of designs and sizes.
• Cost-efficient.
• Handle higher loads when compared to other compression springs.
• Resistant to wear and tear.
• Have a great degree of flexibility when it comes to their applications.
• Perfect for heavy-duty environments.
• Increased fatigue life.
• Reliable load-bearing surface.
• Consistency when it comes to dimensional requirements.
Measuring Die Springs
Measure the Hole Diameter (also known as Outside Diameter).
Measure the Rod Diameter (also known as Inside Diameter).
Measure the Free Length (no load on the spring).
Measure the Wire Size (both width and thickness dimensions).
Configurations
Medium Load
Color Code Gray.
01
Medium Plus Load
Color Code Beige.
02
Medium Heavy Load
Color Code Purple.
03
Heavy Load
Color Code Black.
04
Extra Heavy Load
Color Code Orange.
05
Cycle Life & Maximum Deflection
|
LD (Blue) |
MD (Red) |
HD (Gold) |
XHD (Green) |
|
|
High Cycle Life Range % of Length |
25% to 35% |
20% to 25% |
15% to 20% |
15% |
|
Suggested Maximum Deflection % of Length |
50% |
37% |
30% |
25% |
Chrome Alloy Finishes
Die springs of oil-tempered material are available as unfinished only. A color coding system is employed for our chrome-alloy line for instant visual identification of the spring’s work range and to prevent errors in spring selection and installation. The color coding is a light coating of water-based paint.
|
Color |
Range |
|
Blue |
Light Duty |
|
Red |
Medium Duty |
|
Gold |
Heavy Duty |
|
Green |
Extra Heavy Duty |
Chrome Silicon Finishes
Die springs of oil-tempered material are available as unfinished only. A color coding system is employed for our chrome-alloy line for instant visual identification of the spring’s work range and to prevent errors in spring selection and installation. The color coding is a light coating of water-based paint.
|
Color |
Range |
|
Green |
Light Load |
|
Blue |
Medium Load |
|
Red |
Heavy Load |
|
Yellow |
Extra-Heavy Load |
Certificates
FAQ
As one of the most professional die springs manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to wholesale bulk customized die springs made in China here from our factory. Contact us for more details.
Yellow Die Springs, Mold compression springs, Green Die Springs
