QMS Series Double-Pin Inverted Tooth Silent Chains

• Customization: Available
• Standard or Nonstandard: Standard
• Application: Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Electric Cars, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery, Car
• Model NO.: QMS050/QMS075/QMS100
• Surface Treatment: Polishing
• Structure: Roller Chain
• Material: Alloy
• Type: QMS Series Double-Pin Chains
• Function: Moisture and Acid Against
• Color: Natural
• Certificate: ANSI/DIN/ISO
• Packaging: Industrial Packing or Customers′ Request
• Usage: Conveyor Chain, Driving Chain
• Feature: Corrosion Resistant
• Attachment: Can Be Customize
• Logo: SMCC
• Transport Package: Cartoon Box / Wooden Case
• Specification: Customer′s packaging requirements can be customize
• Trademark: SMCC or No Mark
• Origin: China
• HS Code: 7315119000
• Production Capacity: 5000000/Year
• Package Size: 50.00cm * 40.00cm * 30.00cm
• Package Gross Weight: 50.000kg

Product Description

 

     

Chain     Pitch Number   p,(mm)		Guide Width a,(mm)	Single-Pin Length L,(mm)	Double-Pin Length L,(mm)	Plate Depth h,(mm)	Weight per Metre(kg)
QMS050	12.7	25.4	55.6	54.6	12.6 (single-axis) 12.8 (double-axis)	2.4
QMS075		52.6	83.8	82.8		3.6
QMS100		68.3	102.2	102.1		4.3
QMS125		96.5	127.4	127.3		5.3
QMS150		97.3	153.4	153.3		6.4
QMS200		145.3	200.4	200.3		8.4
QMS250		196.0	251.1	251.0		10.4
QMS300		245.3	303.4	303.3		12.7

           

 

The silent roller chain is an optimized transmission chain developed based on traditional roller chains, specifically designed to reduce operating noise and improve transmission stability. It is widely used in mechanical transmission scenarios with high requirements for noise control and operational precision, such as precision instruments, medical equipment, food processing machinery, and office automation equipment.

Structural Features:

1. Optimized Link Design
   • The chain plates adopt a thin or arc-transition design to reduce rigid impact during meshing between links and sprockets; some models are equipped with buffer coatings (such as nylon or rubber) on the surface of chain plates to further absorb vibration energy.
   • The fit clearance between rollers and bushings is precisely controlled to reduce friction noise during their relative movement while improving rotational flexibility.
2. Silent Guide Structure
   • Some silent roller chains adopt "inner guide" or "outer guide" designs, replacing the side friction of traditional chains with smooth contact between guide plates and guide rails, thereby reducing noise caused by lateral shaking.
   • The back of the chain can be designed to be flat or with buffer strips, adapting to the close-fitting operation with guide components and avoiding impact noise caused by excessive gaps.
3. Materials and Surface Treatment
   • Core components such as chain plates and rollers are mostly made of high-strength alloy steel, which undergoes carburizing, quenching, and other processes to enhance wear resistance and toughness; some environment-friendly models use stainless steel to balance rust resistance and silent requirements.
   • Roller surfaces can be polished, phosphatized, or sprayed with wear-resistant and silent coatings to reduce the friction coefficient when meshing with sprocket tooth surfaces.

Performance Advantages:

• Low-Noise Operation: Through structural optimization and material improvement, the operating noise is 10-30 decibels lower than that of traditional roller chains, especially effective in medium and low-speed transmission scenarios, meeting the strict noise requirements of silent workshops, medical environments, etc.
• Stable Transmission: The flexible contact design between links reduces meshing impact, lowers vibration amplitude, and improves transmission precision, making it suitable for equipment with high requirements for speed stability (such as synchronous transmission in packaging machinery).

COMPANY PROFILE

Qingdao Star Machine Technology Co., Ltd. is located in the beautiful coastal city of Qingdao. We are a large enterprise group engaged in researching, production, marketing, and technical services. We have three large research and production bases and one large marketing center specializing in transmission parts, bearings, chains, sprockets, tractor driving axles, and hydraulic steering units. Covering an area of 80,000 square meters, we now have 816 employees, including 167 senior professional technicians, and a global network of sales and service systems. Maintaining good partnerships with Liaocheng University, Qingdao University, Shandong Agricultural University, Shandong University, and the Chinese Academy of Agricultural Sciences, we receive strong technical support from industry experts.
 
 

  "You provide a request, we'll give you a perfect product".
  We uphold the business philosophy "integrity, efficiency, cooperation, innovation", quality first, advanced technology, precision production, integrity   management, efficient service, to support our customers with the top quality products and super sophisticated technology.

 

1. Reliable Quality Assurance System
2. Cutting-Edge Computer-Controlled CNC Machines
3. Bespoke Solutions from Highly Experienced Specialists
4. Customization and OEM Available for Specific Application
5. Extensive Inventory of Spare Parts and Accessories
6. Well-Developed Worldwide Marketing Network
7. Efficient After-Sale Service System

The 219 sets of advanced automatic production equipment provide guarantees for high product quality. The 167 engineers and technicians with senior professional titles can design and develop products to meet the exact demands of customers, and OEM customizations are also available with us. Our sound global service network can provide customers with timely after-sales technical services.
We are not just a manufacturer and supplier, but also an industry consultant. We work pro-actively with you to offer expert advice and product recommendations in order to end up with a most cost effective product available for your specific application. The clients we serve worldwide range from end users to distributors and OEMs. Our OEM replacements can be substituted wherever necessary and suitable for both repair and new assemblies.

Q: Why choose us?

A. We are a manufacturer; we have manufactured valves for over 20 years.
B. Reliable Quality Assurance System.
C. Cutting-Edge Computer-Controlled CNC Machines;
D. Bespoke Solutions from Highly Experienced Specialists.
E. Customization and OEM Available for Specific Application.
F. Extensive Inventory of Spare Parts and Accessories;
G. Well-Developed Worldwide Marketing Network;
H. Efficient After-Sale Service System

 

Q. What is your payment term?
 A: 30% TT deposit, 70% balance T/T before shipping.
 
Q: Can we print our logo on your products?
A: yes, we offer OEM/ODM service, we support the customized logo, size, package,etc.
 
Q: What is your main market?
A: North America, South America, Eastern Europe, Western Europe, Southeast Asia, Africa, Oceania, Middle East, Eastern Asia.
 
Q: Can I get samples from your factory?
A: Yes, Samples can be provided.