Standard, low-quality insulators commonly used degrade, crack, absorb moisture, or melt under the conditions your operation actually faces. This leads to frequent replacement hassles and wastes more of your maintenance budget. You have been told to "replace them more often" or "use a thicker grad
Our equipment covers CNC (computer numerical control) milling centers, CNC turning,CNC cutting,CNC routing,
PEEK O-rings or seals are often used together in high-temperature, high-pressure environments. The selection of O-rings or seals is particularly important in the oil and gas extraction industry, which is often subjected to severe working environments, because PEEK materials are resistant to high
Plastic Pulleys & Sheaves Acetal offers high strength and stiffness coupled with high dimensional stability and ease of machining，POM/ABS pulleys/sheaves protect ropes from increased frictional wear. The unique sliding surface of our material ensures that the friction between r
Cast Nylon Polyamide semi finished parts are manufactured with casting method. An perfect combination of mechanical performance like low coefficient of friction, good abrasion resistance, toughness and cost make Cast Nylon an ideal replacement for a wide variety of materials from metal,rubber, br
Polypropylene and polyethylene buckets can crack, soften, or degrade when they hold aggressive chemicals. Each failure risks a spill and can contaminate the next batch. Our PTFE lab buckets are made for that work. PTFE resists most common acids, alkalis, and solvents, and residue releases easily
Here is the revised page. I fetched the About Us page to check the company details. The certificates are image-only so that I couldn't read the names of the FDA, USP Class VI, or ISO certificates. I left placeholders for them rather than repeating the claims from the draft. Custom PTFE ma
Maintenance teams lose time to bolts that seize, corrode, or are hard to undo at pipe and flange joints. A PTFE flat washer placed under a bolt head or nut addresses this in three ways. It keeps the fastener from contacting the mating metal, which limits corrosion between the two. Its low-frictio
PEEK O-rings or seals are special parts used in machines that work in
PEEK O-rings or seals are special parts used in machines that work in
PEEK O-rings or seals are special parts used in machines that work in
PEEK O-rings or seals are special parts used in machines that work in
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DSP Sealing, run by Hengshui Dongshu Precision Co., Ltd., machines plastic bearings, seats, rings, insulators, washers, and gaskets from engineering plastics. We make them in standard sizes and to customer drawings, and we ship to buyers around the world. Most buyers choose our China plastic machining parts for low friction, long wear life, and resistance to chemicals in sealing work.
Quality documents and material certificates are available on request, and parts can be made to national or international standards when your order calls for it. Send us a drawing or a part number, and we will quote the price, MOQ, and lead time.
We turn and mill these parts on CNC equipment. Materials include PTFE, PEEK, PA6G (cast nylon), acetal (POM), and ABS. For each order, you can specify the material, outside and inside diameter, thickness, color, and surface finish.
We hold the tolerances shown on your drawing and accept standard CAD and PDF files. If the part has a tight fit or an unusual shape, tell us early so we can check it before cutting.
Pick the material based on the operating temperature and the medium the part will touch, then confirm the dimensions with us. If you are not sure which grade to use, send us the temperature, pressure, and fluid, and we will suggest one.
As a CNC plastic machining supplier, we make parts for oil, gas, chemical, food, beverage, electrical, electronics, automotive, and aerospace buyers. In oil, gas, and chemical plants, the parts are mostly seats, rings, and seals that have to stay tight against aggressive media. Food and beverage lines need the right resin grade, so tell us the requirement, and we will match the material. Electrical and electronics buyers choose PTFE and PEEK for insulators and spacers because both insulate well.
| Material | Typical parts | Strength | Limit |
|---|---|---|---|
| PTFE | Seats, rings, seals, gaskets | Lowest friction, strong chemical resistance, works from -200 to +240 C | Soft, creeps under constant load |
| PEEK | Seats, insulators, high-load rings | High strength and stiffness, holds up under heat and load | Higher cost |
| PA6G | Bearings, bushings, wear plates | Good wear life, easy to machine | Absorbs moisture |
| Acetal (POM) | Bushings, precision parts | Stiff and dimensionally stable | Lower temperature limit than PTFE and PEEK |
| ABS | Housings, low-load parts | Low cost | Limited heat and chemical resistance |
Are you a plastic machined parts manufacturer or a trading company?
We are a manufacturer. Hengshui Dongshu Precision Co., Ltd. runs its own CNC machines, so you get factory pricing and one team handling the work from raw stock to packing.
What do you need to quote a custom plastic part?
A drawing or sample, the material, the quantity, the tolerance, and the surface finish. A short note on the application helps us flag a poor material choice before it costs you money.
What are your MOQ and lead time?
Both depend on the material and the part size. Send your drawing and quantity, and we will confirm the MOQ and delivery date in the quote.
Do you provide samples before bulk orders?
Yes. We make samples or prototypes for inspection, and bulk production starts after you approve them. We confirm the sample cost and lead time in the quote.
