Custom-Formed Silicone Strip Component with Stable Sealing and Long-Term Resilience
Product Overview – O-Ring Features
O-rings provide designers with an efficient and cost-effective sealing solution suitable for a wide range of static and dynamic applications. Their low manufacturing cost and ease of use make O-rings the most widely applied sealing element in industry.
For both standard and specialized applications, a broad selection of elastomer materials is available, allowing O-rings to be used for sealing virtually all liquids and gases in actual operation.
O-rings are vulcanized and formed in molds, characterized by a circular outer shape and a toroidal cross-section. Their dimensions are defined by the inner diameter d1 and the cross-section diameter d2 (as shown).
Advantages
O-rings offer several significant benefits:
Simple structure, with an integral groove design that reduces machining and design costs;
Compact form, allowing integration into smaller hardware;
Easy installation, minimizing risk during assembly;
Versatile performance, capable of handling various sealing requirements including static, dynamic, single-acting, and double-acting conditions;
Wide material availability, suitable for nearly all types of fluids;
Extensive inventory and complete size range, making maintenance and replacement convenient.
Applications
O-rings can be used not only as sealing elements but also as force-applying components in hydraulic sliding seals and dust seals, which is why they are widely used across many application fields. Whether for maintenance and replacement of individual seals or for quality-critical applications in aerospace, automotive, and general industry, O-rings are indispensable.
- O-rings are primarily used for static sealing applications:
Radial static seals, such as those in bushings, sealing caps, pipelines, and hydraulic cylinders;
Axial static seals, such as those in flanges, plates, and end covers.
- For dynamic applications, O-rings are recommended only for mild operating conditions. Due to limitations in speed and pressure, O-rings are generally used for:
Sealing in low-load reciprocating motion of pistons, piston rods, and plungers;
Sealing on shafts, mandrels, and rotary power input shafts under low-speed rotation or helical motion.
Company Profile
BMA
Benma Electric Co., Ltd. is a China-based manufacturer specializing in injection mold manufacturing, while also providing custom silicone components and precision elastomer solutions. With an experienced engineering team and in-house mold-making capabilities, we offer end-to-end support-from material selection and tooling design to mass production and quality inspection.
Our silicone products are supplied to global B2B customers across industries such as:
Sealing and gasket systems for machinery, pumps, and industrial equipment
Outdoor, waterproof, and lighting applications, requiring reliable weather and UV resistance
Electronics, household appliances, and consumer products, where high-precision flexible parts are essential
Mold
Workshop
Processing Workshop
Material
Warehouse
Hardware
Workshop
Assembly
Workshop
Laboratory
Full-Chain Manufacturing
Injection mold design and DFM for precision plastic parts, including glass-filled nylon components
CNC and EDM machining for high-accuracy tooling
Multi-cavity production molds for cost-efficient high-volume production
Controlled injection molding with documented process parameters for consistent plastic parts
Custom silicone component molding, including compression and liquid silicone rubber (LSR) processes
Contact Us Today
When reaching out, please provide:
2D/3D files or sample photos
Material and color preferences
Target order quantity and annual volume
Performance requirements, such as load, flexibility, or durability expectations
Logo, marking, or surface finish specifications
Contact us now to receive a detailed engineering review and a quotation within one business day.
Injection Molding Workshop Planning
Dividing the workshop into dedicated production areas enables seamless coordination, improving speed and operational efficiency.
Factory Equipment
We employ advanced industrial equipment to ensure precise processing and efficient, streamlined production.
Packing and Shipping
●Customized Packing
We offer tailored packaging solutions, including branded logos, labels, and custom-printed cartons. Export shipments are reinforced with sturdy cartons or protective frames and include standard shipping identification.
● Shipping
Bulk orders: Shipped by sea or air through reliable logistics partners for cost-effective and timely delivery.
Samples & small orders: Dispatched via major international couriers such as UPS, DHL, TNT, and FedEx.
FAQ
Q1: What information do you need?
A1: CAD drawings/3D models/sample photos.
Q2: Will my design be kept confidential?
A2: Yes. We can sign a Non-Disclosure Agreement.
Q3: Can I apply my brand logo on the parts?
A3: Yes.
Q4: Can you reproduce a product from my sample?
A4: Yes.
Q5: What payment methods do you accept?
A5: T/T: 30% deposit is required, with the balance due before shipment.
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