
Chain No. |
Pitch |
Roller diameter |
Width between inner plates |
Pin diameter |
Pin length |
Plate dimension |
Tensile strength |
Weight per meter |
|
P |
d1 max mm |
b1 min mm |
d2 max mm |
max mm |
H |
h |
t/T |
Q min |
q |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
kN/bf |
kg/m |
06BF34 |
9.525 |
6.35 |
3.8 |
3.28 |
10 |
12.38 |
7.88 |
1.04 |
7.0/1574 |
0.47 |
*06CF22 |
9.525 |
5.08 |
4.77 |
3.58 |
11.6 |
12.86 |
8.38 |
1.3 |
7.9/1776 |
0.51 |
*06CF30 |
9.525 |
5.08 |
4.77 |
3.58 |
13.9 |
13.05 |
8.55 |
2.03/1.25 |
7.9/1776 |
0.71 |
*PB 525F1 |
9.525 |
5.08 |
4.77 |
3.58 |
11.6 |
13 |
8.55 |
1.3 |
7.9/1776 |
0.57 |
08BF6 |
12.7 |
7.95 |
7.85 |
3.96 |
16.6 |
17 |
11 |
1.5 |
13.8/3102 |
0.91 |
415BF4 |
12.7 |
7.75 |
4.88 |
4.09 |
16.4 |
17 |
11 |
1.3/3.1 |
12.0/2698 |
1.07 |
012.TF4 |
12.7 |
7.5 |
5.5 |
4.45 |
15.6 |
14.3 |
8.5 |
2.03 |
15.0/3372 |
0.99 |
Anti-backbend chains for pushing windows are hardware accessories specifically designed for sliding windows (such as aluminum alloy or plastic-steel sliding windows or outward-pushing windows).
Their main functions are to limit the opening angle of the window, bear pushing and pulling forces, and prevent the chain from excessive bending or deformation under stress, thereby ensuring the stability and safety of the window when it is opened.The chain adopts a multi-section rigid connection design, with each chain link connected by high-strength pins. Combined with limit clips or damping components, it ensures that the chain maintains a straight line or a preset angle when subjected to lateral or longitudinal thrust, avoiding window deviation, jamming, or even falling off caused by excessive bending.

Qingdao Star Machine Technology Co., Ltd. is located in the beautiful coastal city-Qingdao. We are a large enterprise group engaged in researching, production, marketing and technical services, with 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 manufacture, we have manufactured valve 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, Mid East, Eastern Asia,
Q: Can I get samples from your factory?
A: Yes, Samples can be provided.