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FAQs
FAQs About Simker

Simker provides a wide range of rubber products, including accumulator bladders, rubber diaphragms,, and anti-vibration mounts. Product examples include graphene rubber diaphragms for hydraulic rock drills, alloy diaphragms for hydraulic breakers, rubber-modified diaphragms for hydraulic accumulators, seamless integral alloy bladders, and various vibration isolators.

After discussing technical requirements, a custom composite material will be formulated to meet application demands. Laboratory testing will be conducted to verify key physical and performance parameters. Sample components will then be provided for full evaluation. Only after all technical indicators meet specifications will production commence.

Mold development requires approximately 7–10 working days. Batch delivery time is among the shortest in the industry.

Yes. Simker develops proprietary rubber composite materials and formulations, designs its own molds, and applies relaible rubber injection technologies. High-performance products and solutions have been supplied to the mining, marine, automotive, medical, wind power, aerospace, and other industries.

Yes. Samples can be provided upon request. Please contact simker016@simker.com or call +86-311-85382825 to request samples.

Yes. The company supplies products to customers worldwide, including Europe, North America, Japan, and Southeast Asia. For more information on global logistics capabilities, please contact the sales team at simker016@simker.com or 0086-0311-85382825.

Yes. The catalog includes detailed specifications, models, and application areas, which can be viewed on this website. New products and services are updated regularly. For special requirements not listed, please contact the technical team for customized solutions.

Yes. Custom production can be carried out based on a provided sample and corresponding technical requirements. Reverse engineering analysis can be conducted if necessary.

Yes. OEM services are available for trademark owners with legal authorization. The minimum batch quantity for OEM orders is 2,000 pieces.

Yes. The company’s R&D team and laboratory can provide customized solutions to enhance product quality and performance.

Yes. One-stop services are available, including product design, mold fabrication, and mass production.

Products can be manufactured from more than ten materials, including NR, NBR, HNBR, ECO, XNBR, EPDM, and FKM.

Each product can be traced through an SN code.
Quality control is implemented throughout material selection, formula design, and production processes in accordance with relevant standards.

The company conducts multiple tests, covering hardness, tensile strength, aging resistance, corrosion resistance, and oil resistance to ensure conformity with design requirements.

The company maintains long-term strategic partnerships with globally recognized enterprises such as Atlas Copco, SANY Heavy Industry, Dynapac, China State Shipbuilding Corporation, CRRC, Sinopec, Huatai Mining, and Kaishan Heavy Industry, providing customized development and production of custom rubber components.
FAQs About Products

Rubber Diaphragms

The service life primarily depends on the material, formulation, and operating environment.

Provide the matching equipment model, diaphragm drawing, working conditions, technical standards, material requirements, and any industry certification to avoid mismatching.

Graphene enhances high-temperature resistance, broadens the operational temperature range, improves aging resistance, and extends service life, enabling reliable performance under complex environmental conditions.

Simker’s diaphragms help avoid costs associated with frequent replacements, downtime losses, and reduced operational efficiency, minimizing lifecycle expenses and production risks.

Mining diaphragms incorporate graphene dispersion and nano-modification technologies, providing high strength, toughness, wear and corrosion resistance, and improved tear, fatigue, and thermal stability.

They extend service life, reduce failure frequency, optimize maintenance intervals, and mitigate wear, corrosion, and leakage issues, lowering overall operating costs and improving system reliability.

Diaphragms are available in various specifications, including 4L and 10L sizes compatible with different marine accumulator systems.

High fatigue resistance and gas impermeability are critical. Simker diaphragms meet or exceed the technical parameters of comparable foreign products.

Estimate consumption based on equipment usage and average diaphragm life, maintain a safety stock, and align procurement with production cycles to avoid shortages or overstocking.

Food-grade diaphragms must use odor-free, food-safe materials; chemical-grade products require verified corrosion resistance and test data for strong acid and alkali environments; high-temperature or high-pressure uses must be validated for corresponding limits.

Special corrosion-resistant rubber materials can be applied. These materials are treated for aging resistance and saltwater exposure, allowing the diaphragms to operate reliably in seawater, salt spray, and high-humidity environments while maintaining airtightness and functional stability.

Simker offers rubber composite materials with excellent resistance to high and low temperatures, fatigue, and tearing. These materials ensure stable and reliable performance of brake systems under demanding temperature conditions and frequent pressure fluctuations.

Accumulator Bladders

Yes. Made from fatigue-resistant rubber composites, the bladders withstand millions of load cycles and maintain stability in high-vibration conditions.

Yes. They are made from corrosion-resistant and anti-aging rubber, ensuring durability and airtightness in marine environments.

Materials with high resistance to special media, temperature extremes, gas permeability, fatigue, and tearing are selected to ensure safety and performance in varying climates.

Yes. Every unit undergoes strict air-tightness, pressure cycling, and fatigue tests before delivery.

Yes. Various specifications are available, and products can be customized by model and operating conditions to match original equipment performance.

Yes. High-pressure-resistant, fatigue-resistant, and tear-resistant rubber diaphragms and bladders are available to ensure long-term stable operation in automotive brake chambers.

Yes. Bladders and diaphragms can be customized in various capacities from 0.16 L to 80 L, meeting the requirements of different wind power and industrial systems.

Yes. Made from natural rubber, nitrile rubber, or polyurethane, the products offer high elasticity, damping properties, wear resistance, and oil resistance, ensuring long-term reliability.

Yes. Tailored technical solutions can be developed based on specific operating conditions, offering high temperature resistance, low temperature resistance, corrosion resistance, fatigue resistance, and tear resistance to meet individual application requirements.

Accumulators

Yes. The welded diaphragm accumulators ensure precise control, accurate energy storage and release, and stable pressure regulation in compact designs suitable for medical devices.

Dual-chamber threaded or dual-chamber flanged accumulator are recommended. Their high capacity and dual-chamber structure absorb pressure surges, maintain stability during load changes, and prevent swing or shock.

Multi-chamber flange-type accumulators are ideal. Constructed with corrosion-resistant materials, the multi-chamber design ensures stable energy storage and release under pressure fluctuations.

Yes. Rubber diaphragms or accumulator bladders can be customized according to equipment specifications to meet high pressure resistance, fatigue resistance, and tear resistance requirements, ensuring safe and stable operation under continuous heavy-duty conditions.

Yes. A one-stop accumulator assembly solution is available, including flange-type, threaded-type, and multi-chamber flange-type accumulators to meet various requirements of marine hydraulic systems.

Anti-Vibration Mounts

Metal-rubber isolators provide wide environmental adaptability, easy storage, and long service life. They operate within -80°C to 1500°C, offer low natural frequency, low creep, and variable damping characteristics, effectively suppressing vibration peaks.

Products can be tailored for high-temperature, ultra-low-temperature, noise reduction, anti-corrosion, and weather-resistant performance, as well as structural compatibility according to specific operational requirements.

Yes. Custom anti-vibration mounts made of wear-resistant, corrosion-resistant, and temperature-resistant materials can be provided. These components feature excellent shock absorption and noise reduction, significantly minimizing vibration and operational noise.

Yes. Metal–rubber isolators can be customized with low natural frequency and variable damping properties to effectively reduce vibration and noise. They are resistant to extreme temperatures ranging from –80°C to 1500°C, suitable for demanding engine environments.

Yes. Special vibration isolators for port lifting equipment can be supplied. These components absorb over 80% of impact loads, protect structural components and cargo, and are suitable for humid and dusty operating environments.
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