Select Your Seat Belt Retractor
DEMS offers plenty of Seat Belt Retractor Options to Meet Your Requirements:
- Various Colors and Available Webbing Length Options
- Retraction Mechanism Types: ELR or ALR
- Additional Safety Functions
- Retractor Housing Dimensions
Contact our team about your specific requirements
Why DEMS Seat Belt Retractors
- Multiple retractor types to choose from
- Different designs for wide applications
- Expert designers offer optimization services according to clients’ drawings.
- OEM manufacturing services
- Eligible for manufacturing with certifications from professional institutions.
- Efficient Production Line and Advanced Equipment

What is the Seat Belt Retractor?
A seat belt retractor plays an important role in webbing extension and retraction. It features different safety functions depending on the specific structural design, such as emergency locking and automatic locking. Sometimes, load limiters or pretensioners are required for extra protection.
You Reliable Seat Belt Retractor Manufacturer
DEMS offers multiple choices for seat belt retractors. Our retractors are designed by expert designers and made of high-quality materials to provide safety for you.
Automatic Locking RetractorAn ALR locks and prevents further extension once the belt is extended to a predetermined length. It provides continuous restraint.
Emergency Locking RetractorAn ELR allows you to move freely under normal driving conditions. The locking mechanism is activated during a rapid deceleration or an event of a crash.
Emergency Locking Retractor with PretensionerA pretensioner in the emergency locking retractor removes any slack instantly and restrains the occupant in a proper position.
Emergency Locking Retractor with Load LimiterThe retractor with a load limiter can release a tiny amount of webbing to reduce the huge force caused by the belt.
Sand-Resistant RetractorA sand-resistant retractor is designed with a sealed structure to provide sand and water resistance for harsh environments.
Features of Seat Belt Retractors

DEMS seat belt retractors are designed and optimized by professional designers with the help of Unigraphics NX. The feasibility and logic of retractor structures are strictly verified to make sure they meet the functional requirements.

The seat belt webbing is stored by being wound around the spool of the retractor. It not only increases the usable space inside vehicles but also prevents the belt from being damaged and soiled.

When you unlock the seat belt, the belt is automatically retracted by the retractor. On the one hand, it provides convenience and comfort in operation. On the other hand, it reduces unexpected waste of seat space.

DEMS seat belt retractors adopt universal mounting holes which fit the seats in common vehicles. Hence, you can install the retractors with high-strength or specified bolts rather than complex installations. Meanwhile, it minimizes the installation cost.

Both plastic and metal components adopted in our seat belt retractors are made of high-strength and quality materials, which help to prevent damage inside the retractor that may lead to mechanism failure.

The designs of our seat belt retractors specially focus on smooth webbing extensions. You can pull the belt out and adjust it easily. Our team is continuously working to optimize our existing designs and develop better products for you.

With the help of the sensors(webbing sensor and sometimes vehicle sensor) in the DEMS seat belt ELR, you are allowed to move freely when driving at normal conditions. But once an accident occurs, the locking mechanism is activated and protects you immediately.

Our seat belt retractor consists of several mechanical structures that are made of high-quality plastic and metal materials. It greatly prevents failures caused by material aging and is triggered instantly.
Applications of DEMS Seat Belt Retractors
Different seat belt retractors are selected according to seat positions, installation spaces, and requirements for protection of multiple vehicles. Here are several examples:
As a vehicle used by the vast majority of people, passenger cars require a higher level of protection and comfort. As a result, they are typically equipped with ELR. Sometimes, the load limiter and pretensioner are adopted for further safety considerations.
ALRs are the common choices for forklift and Golf Cart seat belts. They provide fixed and continuous restraint for drivers to deal with vibrations and special situations.


Customized with Specific Requirements
DEMS offers multiple customized solutions for seat belt retractors to meet your specific requirements. For instance, you can select the suitable retractor housing, making sure it can be installed properly in your required vehicles. Additionally, your selection of the length of seat belt webbing in retractors depends on spool dimensions. Moreover, if you have any requirements for the design of structures, we are capable of providing various solutions for you. Finally, it is available to add extra safety functions to retractors.
Strict Quality Tests before Mass Production
DEMS seat belt retractors are tested with professional equipment to meet the enterprise’s regulations. Then they are assembled into a complete seat belt restraint system as a sample and sent to professional institutions. Mass production will only start after the samples are certified.
Several quality tests by DEMS include:

In a test process, the webbing is extended to different lengths for 5 times to simulate situations with multiple body sizes, and then a rapid pull triggers the locking mechanism. Typically, there will be more than 5000 processes to inspect the durability of a retractor.

A complete seat belt assembly is exposed to a simulated scenario for a certain time with a certain percentage of salt water. This test aims to verify the corrosion-resistant of the seat belt retractor and other parts of the seat belt.

In order to ensure our seat belt retractors can deal with the high and low temperature environments such as Russia, North America or some countries in Africa, our seat belt retractor will be tested with a high or a low temperature for a certain time.

In a strength test, the webbing is pulled out by a huge force. DEMS has a more strict standard of the maximum force a retractor can withstand before the joint with webbing is broken. We are always working to improve the strength of our seat belt retractor and provide protection for you.
What Our Clients Say
Generally, the professional tests are performed on the complete seat belt assembly. For example, the certification tests of ECE R16 or FMVSS 209 inspect the interaction between each part of a seat belt assembly.
The price of a seat belt retractor depends on various aspects such as the types of locking mechanisms, extra safety functional accessories, selection of materials, certifications, and so on.
Of course. After understanding the seat positions, installation spaces, and some other key information, DEMS could provide a suitable seat belt retractor for you and even optimize the existing product to meet your specified requirements.
If you plan to replace a seat belt retractor, you should check the anchorage for the retractor on your vehicle seat and the demand safety functions depend on your requirements and regulations.
If your seat belt retractor is simply stuck by something, then you can repair it at a car repair shop. However, you are supported to replace a retractor after some mechanisms are activated. It is crucial to make sure the retractor operates properly.
Yes. DEMS is capable of communicating with clients in the form of 3D design drawings. You can also tell our designer about your technical and optimization requirements.









