Product Description

Car Industry

LTR is an expert in manufacturing all kinds of components for the automotive and motorcycle industry. We are IATF16949:2016 certified in order to fully satisfy the requirements of this industry.
Our production includes O rings, gaskets, seals, grommets, bellows, shock absorbers, dampers, cushions, sleeves, isolators, couplings, bushings, boots, covers, bumpers, pipes, hoses, tubes and many other pieces which are mainly manufactured in ACM, AEM, BR, CR, ECO, EPDM, FKM, FVMQ, HNBR, NBR, NR, SBR, SIR to meet the physical properties specified by ASTM D2000 and SAE J200 documents.
Products above are only examples to show Shun Tai Rubber’s core competences. All our rubber components are customised and made to order only. No standard product or catalogue is available.

Technical data

 

Compound:                                                                                  Colour:

Base Polymer:                                                                             Specification:

MAIN SPECIFICATION

MEASURE UNITS

REQUIRED VALUE

TESTED VALUE

TEST METHOD

HARDNESS

Sh-A

70+/-5

69

ASTM D2240

SPECIFIC GRAVITY

g/mm^3

\

1.176

TENSILE STRENGTH

Mpa

\

8.62

ASTM D412

ELONGATION

%

\

628.11

ASTM D412

Tear Strength

kg/cm

\

27.38

ASTM  D624

SPECIFICATION CHANGE

TEST MEANS

TIME h

TEMP ºC

HARDNESS

TENSILE STRENGTH

ELONG.AT BREAK

VOLUME

WEIGHT

required   test

required test

△ SHORE A

%

%

△%

△%

Products above are only examples to show Shui Tai Rubber’s core competences. All our rubber components are customized and made to order only.No standard product or catalogue is available.

Company Profile

We are a specialized rubber parts manufacturer with over 30 years of manufacturing experience. Our company mainly produces rubber parts for medical appliances, household appliances, electronic products, automobiles and toys.

Covering an area of 3500 square meters, we own over 200 staff and workers and our monthly production output reaches 30 tons.We have always stuck to the quality policy that customer is No.1 and quality comes first with scientific management, continuous improvement and sustained operation.

We insist in providing our clients with perfect products and best services. The products we produced can work in different areas and climates according to your specific requirements. We believe with stable and sincere cooperation and continuous improvement, our customers will enjoy the best service as stable supply, quality assurance and on-time delivery.

Products & Application

Production Flow Chart
Manufacturing Capabilities&Quality Control

FAQ

Q: Are you trading company or manufacturer ?
A: We are manufacturer.
Q: How long is your delivery time?
A: Generally 3-7 days for standard sealing products; and 15-30 days for big order and custom non-standard products.
Q: Do you provide free samples? 
A: Yes, we offer free sample while customer need pay for the freight charge.
Q: Which Payment way is workable?
A: Irrevocable L/C, Cash, PayPal, Credit card and T/T money transfers.
B: 30% T/T deposit in advance, 70% balance before shipment after presentation of ready cargo.
C: L/C ( Irrevocable LC at sight: Order amount over USD100,000)
Q: What is your standard packing?
A: All the goods will be packed by carton box and loaded with pallets. Special packing method can be accepted when needed.
Q: How to select the raw compound for my application?
A: With years of experience working with a variety of material, we can help select the material that will best suit your needs while keeping material costs in mind.
Q: Do you use any international standards for the rubber products?
A: Yes, we mainly use ASTM D2000 standard to define the quality of the rubber materials, tolerances as per ISO3302, ISO2768, etc.
Q: Can you supply different color materials?
A: Yes, we can produce custom CHINAMFG and silicone rubber products in different colors, the color code will be required in case of an order.
Q: What materials are available to produce from your side?
A: NBR, EPDM, SILICONE, (FKM), NEOPRENE(CR), NR, IIR, SBR, ACM, AEM, Fluorosilicone(FVMQ), FFKM, Liquid Silicone, Sponge, etc.

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Use of Jaw Couplings in Food Processing and Pharmaceutical Industries

Jaw couplings can be used in food processing and pharmaceutical industries under certain conditions and with the appropriate materials and design considerations. These industries have strict regulations and requirements regarding hygiene, contamination prevention, and cleanability. Here are some key factors to consider:

• Material Selection: For applications in food processing and pharmaceutical industries, jaw couplings must be made from materials that meet FDA and/or other regulatory standards for food contact and pharmaceutical use. Stainless steel or FDA-approved plastics are commonly used in such applications.
• Cleanability: The design of the jaw coupling should allow for easy cleaning and sanitization. Smooth surfaces and minimal crevices help prevent the accumulation of debris and bacteria. Hygienic designs are crucial to ensure compliance with industry standards.
• Sealing: Proper sealing is essential to prevent any lubricants or contaminants from escaping the coupling and coming into contact with the processed materials. Seal materials must be compatible with the substances used in the industry.
• Corrosion Resistance: In food processing and pharmaceutical environments, equipment is often subjected to aggressive cleaning agents and chemicals. Jaw couplings must be corrosion-resistant to withstand these harsh conditions and maintain their performance over time.
• Compliance with Regulations: Industries such as food processing and pharmaceuticals have specific regulatory standards, such as those set by the FDA (Food and Drug Administration) or other relevant authorities. The jaw couplings used in these applications must meet all necessary regulations to ensure product safety and consumer confidence.

It is important to note that while jaw couplings can be suitable for certain applications in food processing and pharmaceutical industries, it is essential to work closely with coupling manufacturers and suppliers to ensure that the selected couplings meet all industry-specific requirements and standards. Additionally, regular maintenance and inspection should be carried out to ensure the couplings continue to perform as expected and comply with hygiene and safety regulations.

What are the common installation mistakes to avoid when using jaw couplings?

Proper installation of jaw couplings is crucial to ensure their reliable and efficient operation. Avoiding common installation mistakes can prevent premature wear, misalignment, and potential equipment damage. Here are some of the most common installation mistakes to avoid when using jaw couplings:

1. Incorrect Coupling Size: Using the wrong size of jaw coupling for the application can lead to various issues. Undersized couplings may not handle the required torque, leading to early failure, while oversized couplings may result in increased rotational inertia and decreased system performance. Always ensure that the selected coupling is appropriate for the torque and power requirements of the equipment.
2. Misalignment: Improper alignment of the shafts during coupling installation can cause excessive forces and premature wear on the coupling components. Angular, parallel, and axial misalignments should be minimized and kept within the manufacturer’s recommended tolerances. Consider using alignment tools and techniques to achieve accurate shaft alignment.
3. Over-Tightening: Applying excessive torque when tightening the coupling elements can lead to deformation of the elastomer spider or damage to the hubs. Over-tightening can also increase friction and cause premature wear. Follow the manufacturer’s specified torque values during installation to ensure proper clamping without causing damage.
4. Lack of Lubrication: Some jaw couplings require lubrication to reduce friction and wear. Neglecting to lubricate the coupling elements can lead to increased friction, higher operating temperatures, and reduced coupling life. Follow the manufacturer’s guidelines regarding lubrication intervals and types of lubricants to use.
5. Failure to Inspect Components: Before installation, carefully inspect all coupling components for any signs of damage, wear, or defects. Using a damaged or worn-out elastomer spider or other components can compromise the coupling’s performance and reliability. Replace any worn or damaged parts before installing the coupling.
6. Improper Shaft End Preparation: Ensure that the shaft ends are clean, smooth, and free from burrs or imperfections before installing the coupling. Rough or uneven shaft surfaces can lead to misalignment and reduce coupling performance. Properly clean and prepare the shaft ends to ensure a secure and accurate fit.
7. Not Following Manufacturer’s Guidelines: Each jaw coupling has specific installation instructions provided by the manufacturer. Failure to follow these guidelines can result in coupling failure or reduced performance. Always refer to the manufacturer’s installation manual and recommendations for proper installation procedures.

By avoiding these common installation mistakes, users can maximize the performance and longevity of jaw couplings in their applications. Proper installation ensures that the coupling operates efficiently, transmits power effectively, and reduces the risk of unexpected failures or downtime.

Maintenance Requirements for Jaw Couplings

Jaw couplings are relatively low-maintenance components, but regular inspections and preventive measures can help ensure their optimal performance and longevity. Here are the maintenance requirements for jaw couplings:

• Visual Inspections: Regularly inspect the jaw coupling for signs of wear, damage, or misalignment. Look for cracks, chips, or deformation in the elastomeric spider, hubs, and other components.
• Lubrication: Some jaw couplings require periodic lubrication of the elastomeric spider to prevent dry rot and ensure flexibility. Refer to the manufacturer’s guidelines for the appropriate lubrication schedule and type.
• Tighten Fasteners: Check and tighten all fasteners, including set screws, regularly to prevent coupling slippage and maintain a secure connection between the shafts and hubs.
• Alignment: Ensure that the shafts connected by the jaw coupling are properly aligned. Excessive misalignment can lead to premature wear and failure of the elastomeric spider.
• Replace Worn Parts: If any component of the jaw coupling shows signs of wear beyond acceptable limits, promptly replace it to avoid further damage and potential system failure.
• Operating Conditions: Monitor the operating conditions of the machinery to prevent overheating or overloading, which can affect the performance and life of the coupling.

Following these maintenance practices can extend the life of the jaw coupling, reduce the risk of unexpected failures, and contribute to the overall reliability of the mechanical system.

editor by CX 2024-03-11