About us
Description
The Composite Drum-type Seal Ring is double-acting piston seal ring with the all-in-one guide ring. Its elstic ring is combined with the specially-formed sealing ring provide a perfect sealing effect, it's featured in resisting high pressure, against forcing our and standing abrasion.
Material
Sealing ring: PU
Elastic ring: NBR
Guide ring: POM
Working Conditions
Pressure: 0-70mpa
Speed: <0.3m/s
Temperature: -20°c ~ +100°c
Woring Medium: 5% Emulsion, Hydraulic oil and others.
Application
Hydraulic Support
Crane Trunk
Dredging Machine
Heavy-duty Hydro-cylinder
Workshop
How to order from us?
1. Contact DEF's salesman to get a quotation.( by Email, Telephone, Trademessage)
2. Send DEF your asked type and detailed instruction(mateials, size, quantity,color, special requestes etc.)
3. Will send price and other details informations to you,send back Purchaser Order for approval
4. After confirm order and timeline, DEF'll start production procedure once receive payment.
5. If require sample, please inform DEF in advance.
6. 5~10 working days for making seals.
7. Quality Checking, DEF can send bulk order photo for approval before packing, if you need.
8. Packing
9. Order release for shipping.
10. Any issue,please contact DEF after receive package. DEF'll invest and consult with you for solution.
11. Quality and Service are DEF principle.
Please feel free to contact us if you need more details about our factory and products.
Sealing ring |
CPU (95A, red color) |
Elastomer |
NBR/FKM |
Backup ring |
POM |
Pressure [MPa] |
dynamic≤70, static≤120 |
Temperature [° C] |
-20^100 |
Sliding speed[m/s] |
0.3 |
Medium |
Mineral oil based hydraulic fluids, barely flammable
hydraulic fluids, water. |
Common-using Code |
MT/T576, MT/T985 |



