Description
Mining piston seal (BMN) consists of a polyurethane sealing ring, a NBR/FKM O-ring and a backup rings. Sealing ring has sealing function, elastomer provides elasticity and compensate for wear and tear, backup ring can prevent seals to be squeezed out of groove.

Materials
Sealing ring PU (95A, red color)
Elastomer NBR/FKM
Backup ring POM

Technical Data
Pressure [MPa] dynamic≤ 70, static≤ 120
Temperature [° C] -20100
Sliding speed[m/s] 0.3
Medium Mineral oil based hydraulic fluids, barely flammable hydraulic fluids, water.

Application
Longwall roof supports
Tunnelling Machines
Cutting Machines
Roof Bolting Machines
Excavators
Scoop Trams
Shearers
Shuttle Cars
Drilling Machines

Advantages
1. Excellent static and dynamic sealing, double lips design.
2. High pressure resistance, excellent axis loading capacity
3. High squeeze out resistance.
4. Save groove width



Mining Seals


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.