GDK N4W Back-up Wear Ring for Hydraulic Excavator Cylinder
Back up ring N4W for rod seal
Use in the cylinder(head)
material:Nylon or POM
color: Yellow or green
Sizes: unlimit sizes
Ten years of experience makes our company comply with the seals development, pursuing high quality and first-rate service are our goals.Looking forward you to visit our factory in GUANGZHOU CHINA.
The products we can supply as below:
CONTAMI SEAL:KZT
PISTON PACKING
WEAR RING:Phenolic Resin WR,CAT type WR,PTFE RYT ect
DUST SEAL :DKB/DKBI,PAD, DSI, DLI/VAY, LBH etc
ROD PACKING
BUFFER RING:HBY,HBTS /HBTY(step seal)
BACKUP RING:BRT/BRTS/BRN,N4W,TFP/TFG
SEAL FOR CYLINDER-BOOM
SEAL FOR CYLINDER-ARM(STICK)
SEAL FOR CYLINDER-BUCKET
ROTARY JOINT SEALS
ROTARY(CONTROL) JOINT SEALS
ENGINE SEALS
HYDRAULIC PUMP SELAS
FRONT IDLER SEALS
CHAIN ADJUSTER SEALS
TRAVELLING MOTOR SEALS
CENTER JOINT SEALS/TURNING JOINT SEALS
SLEWING DEVICE SEALS /SWING MOTOR SEALS
LEVER CONTROL SEALS/ PILOT VALVE SEALS / PPC SEALS
TRANSMISSION SEAL KIT
ORING BOX / O RING KIT
HAMMER BREAKER SEAL KIT/BREAKER SEAL KIT
Packaging & Delivery
Packaging Details
Inner is corrugated paper with film shrinkable. outer is carton with film wrapped.
Port: Guangzhou, China
Lead Time :
| Quantity(Pieces) |
1 - 10000 |
>10000 |
| Est. Time(days) |
15 |
To be negotiated |
Product Information
| Item |
Specifications |
| Product Name |
PTFE Back Up Ring for Hydraulic Cylinder Seals |
| Colors |
Black, brown, red, white, black, green, blue |
| Size |
OD can be 12mm to 2000 mm |
| Working Pressure |
0~60MPa |
| Working temperature |
-40°~+200ºC |
| Working speed |
15m/s |
| Products Category |
Hydraulic seals, Oil seals, O-Rings |
| Material |
PTFE, PU, NBR, FKM, PA, etc. |
| Propeties |
High temperature, Low Temperature, High Pressure, Low Pressure |
| Sizes |
Standard and Customize |
| Medium |
Hydraulic Oil,Skid Steer Loaders,Wheel loaders |
| Application |
Excavators, Loaders, Forklifts, Bulldozers, Cranes, Agricultural Machinery,Skid Steer Loaders,Wheel loaders,Etc. |
Product Display
Our Service
1. OEM Manufacturing welcome: Product, Package...
2. Sample order Is available.
3. We will reply you for your inquiry in 24 hours.
4. after sending, we will track the products for you every two days until you get the products. When you got the
goods, test them, and give us feedback.If you have any questions about the products or problem in hydraulic seal field, contact with us, we will offer expert solution fits for you.
About Us
GDK seals company is professional seals manufacturer in Guangzhou China, and specialized in the seal kits of the excavator, breaker, loader, dozers, backhoes engineering industrial equipment for more than 12 years.
We set up the PTFE polymer materials, PU polyurethane and NBR materials seals producing line; Meanwhile, NOK, SKF, PARKER, CFW brand seals are also supplied well as the distributor in China. All sealing products are widely used in different kinds of excavator and breaker hammer installation and maintenance systems, wining high reputation from the customers at home and abroad.
Q&A
Q1. What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent,
we can pack the goods in your branded boxes after getting your authorization letters.
Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages
before you pay the balance.
Q3. What is your terms of delivery?
A: EXW
Q4. How about your delivery time?
1) 1-2 days if goods in stock.
2) 10-20 days if goods out of stock with molding.
3) 25-35 days if goods out of stock without molding.
Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and
the courier cost.
Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery
Q8: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them,
no matter where they come from.
Special order: Require for other size or material,please contact us for further discussion about new mould and price.
Audited Supplier 
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