PTFE Dust Wiper O-Ring Pre-Stress Piston Rod Wear-Resistant Seal Ring for Presses

• Customization: Available
• Material: PTFE Filled with Bronze/Carbon+NBR/FKM
• Application: Cylinder
• Model NO.: CW28-F
• Type: Wiper Seal
• Performance: High Pressure
• Shape: O-Ring
• Standard: Standard, Nonstandard
• Materials: PTFE Filled with Bronze/Carbon,NBR/FKM
• Coler: Bronze /Black
• Size: as Customers Requirements
• Hardness: Shore D 65
• Performance1: Excellent Sealing Performance
• Applications: Prevent Dust or Contaminants Entering The Sys
• Movement: Linear,Upward out Stroke
• Temperature: -30~100ºC
• Medium: Mineral Oil
• Component Parts: One Profile Ring,Two O-Rings
• Moving: Double-Acting
• Speed: 5m/S
• Transport Package: Carton
• Specification: 0-4000mm
• Trademark: KELUOKE
• Origin: China
• Package Size: 15.00cm * 15.00cm * 5.00cm
• Package Gross Weight: 0.500kg

Product Description

Double wiper consisting of one profile ring with one sealing edge and one wiper edge, plus two O-rings as prestress elements.

Materials
PTEE-3 (Filled)PTFE + 40%Bronze
Compared to PTFE-1, this modified grade delivers enhanced compressive strength,improved thermal conductivity,superior wear resistance,and reduced creep making it ideal for dynamic sealing applications.
PTFE-4(Filled)PTFE + 25%Carbon Fiber
PTFE-4 demonstrates enhanced mechanical strength, rigidity, and sliding performance compared to virgin PTFE making it particularly suitable for rotary sealing applications.

Function

Excellent controllability and position ability 


Suited for large diameters

No space for any dirt clusters
The wipers additional static sealing zone(dirt deflector) flush-fits with the housing and leaves no space for any dirt clusters

Good wipe-off sticky dirt
Out standing ability to wipe-off sticky dirt by inherently stable wiper edge.

Reliability sealing system
Improved functional reliability of the completer ability due to thewipers' additional sealing edge.

Stick-slip free
Stick-slip free operation by customisedchoice of materials (friction coefficient)

Application

Double wiper with integrated sealing function towards the outside diameter to improve the sealing functionality of the complete sealing system.


Detailed page about the PU material inspection report.

Material	Color	Hardness	Work Temperature	Density	Elongation at break	Tensile StrengthTest
/	/	Shore D	°C	cm³    %	%	N/mm²
Standard	/	DIN53505	/	EN ISO 1183	DIN53504/53455	DIN53504/53455
Pure Tetrafluoroethylene	White	57	-200~260	2.17	300	27
PTFE +15%GlassFiber +5%Molybdenum Disulfide	Gray	57		2.25	200	18
PTFE+40%Bronze	Bronze	64		3	280	22
PTFE+25%Carbon Fiber	Black	65		2.1	150	15

Material Name	Key Properties	Key Applications
Nitrile ButadieneRubber (NBR)	Superior wear resistance,non-polar oil/solvent resistance, water/penetration	Automotive oil seals, mechanical gaskets, hoses,printing rollers; core material forautomotive/petroleum/machinery industries
Fluorocarbon Rubber(FKM/FPM)	High-temperature resistance	Aerospace high-temperature seals;Chemical industry corrosion-resistant equipment.

Qingdao keluoke Sealing Technology Co., Ltd.

We are a leading innovator in precision sealing technology. Using advanced mold-free turning machines and top-grade imported materials, we deliver high-quality seals in any size (0-4000mm), shape, or material offer a full range of seals, including cylinder/valve/pump seals made from various polyer materials.Additionally, we provide expert services in design, prototyping, productiontesting, and installation.
With years of expertise and market experience, we consistently provide mid-to-high-end sealing solutions-delivering both standard and custom seals with industry-leading speed, specialize in large-diameter sealing rings (up to4000mm) with proven manufacturing excellence. As your trusted global partner.we focus on building long-term, stable collaborations.
Quality & Service: Our Core Promise
Your needs drive our innovation. We sincerely appreciate your trust and lookforward to building a successful future together.

Cargo transportation methods	Air Freight Adjustable to customer requirements
Packing Methods	Carton Adjustable to customer requirements
Express	DHL/Fedex or other ways you need
Delivery Time	Normally  two weeks , if you need it urgently ,  24hours may be available (Depending on our raw material stock )

Q: What's the lead time for orders?
A: Fastest delivery within 24 hours available.

 

Q: What payment methods do you support?
A: We support T/T, Western Union, PayPal, cash, etc. The details can be negotiated.

 

Q: Do you provide after-sales service overseas?
A: Yes, we have partnered service centers in key regions.

 

Q: Can I request a customized size?
A: Absolutely! We offer tailored attachments.We offer a comprehensive selection of products in various models and materials. For detailed specifications or tailored recommendations, please contact our technical team 

 

Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).

 

Q: How do I place an order?
A: Contact us via email for a quote.

 

Q:What payment methods do you support?
A: We support T/T, Western Union, PayPal, cash, etc. The details can be negotiated.

 

Q: Are you a factory or a trader?
A: We are a manufacturer integrating industry and trade. Welcome to visit our company.

 

Q: Can I add my LOGO to the product?
A: We support on-demand customization, including LOGO customization, color customization, appearance size customization, etc.

 

If you have more questions,please contact us