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FORGE -SPGW 4PC KOPPER

SPGW 4-Piece Kopper / Composite Piston Seal (Heavy-Duty Double-Acting)

SPGW is a heavy-duty, double-acting composite piston seal system designed for demanding hydraulic cylinder applications operating at very high pressure and dynamic loads. The SPGW profile is a multi-component (4-piece) sealing system, typically comprising a low-friction slide ring, elastomer energiser, and supporting elements that provide enhanced stability and extrusion resistance.


This construction ensures reliable sealing performance, controlled friction, and excellent durability under severe operating conditions, making SPGW seals suitable for high-pressure mobile and industrial hydraulics.


Operating Specifications

  • Seal type: Double-acting composite piston seal (4-piece set)

  • Maximum pressure: Up to 500 bar

  • Maximum sliding speed: Up to 1.5 m/s

  • Temperature range: –35 °C to +110 °C

  • Media: Mineral oils and compatible hydraulic fluids


Key Characteristics

  • Excellent extrusion resistance at very high pressure

  • Stable sealing performance under dynamic loading

  • Low friction with controlled wear characteristics

  • Long service life in heavy-duty applications


Typical Applications

  • High-pressure hydraulic cylinders

  • Construction and earthmoving equipment

  • Mining and heavy industrial machinery

  • Mobile hydraulics requiring robust piston sealing

SPGW piston seal systems are selected where maximum pressure capability, reliable double-acting sealing, and long-term durability are critical to system performance.

No.CodeDescriptionMaterial
1PKM-50-36-8.5SPGW – 50 × 36 × 8.5Bronze PTFE
2PKM-55-41-8.5SPGW – 55 × 41 × 8.5Bronze PTFE
3PKM-60-46-8.5SPGW – 60 × 46 × 8.5Bronze PTFE
4PKM-63-48-10.5SPGW – 63 × 48 × 10.5Bronze PTFE
5PKM-65-50-10.5SPGW – 65 × 50 × 10.5Bronze PTFE
6PKM-70-55-10.5SPGW – 70 × 55 × 10.5Bronze PTFE
7PKM-75-60-10.5SPGW – 75 × 60 × 10.5Bronze PTFE
8PKM-80-65-10.5SPGW – 80 × 65 × 10.5Bronze PTFE
9PKM-80-65-12SPGW – 80 × 65 × 12Bronze PTFE
10PKM-85-70-10.5SPGW – 85 × 70 × 10.5Bronze PTFE
11PKM-90-75-10.5SPGW – 90 × 75 × 10.5Bronze PTFE
12PKM-90-75-12SPGW – 90 × 75 × 12Bronze PTFE
13PKM-95-80-10.5SPGW – 95 × 80 × 10.5Bronze PTFE
14PKM-100-85-12SPGW – 100 × 85 × 12Bronze PTFE
15PKM-105-90-12SPGW – 105 × 90 × 12Bronze PTFE
16PKM-110-95-12SPGW – 110 × 95 × 12Bronze PTFE
17PKM-115-100-12SPGW – 115 × 100 × 12Bronze PTFE
18PKM-120-100-16SPGW – 120 × 100 × 16Bronze PTFE
19PKM-120-105-12SPGW – 120 × 105 × 12Bronze PTFE
20PKM-125-102-15.5SPGW – 125 × 102 × 15.5Bronze PTFE
21PKM-125-105-16SPGW – 125 × 105 × 16Bronze PTFE
22PKM-130-107-15.5SPGW – 130 × 107 × 15.5Bronze PTFE
23PKM-135-112-15.5SPGW – 135 × 112 × 15.5Bronze PTFE
24PKM-140-117-15.5SPGW – 140 × 117 × 15.5Bronze PTFE
25PKM-140-120-16SPGW – 140 × 120 × 16Bronze PTFE
26PKM-145-122-15.5SPGW – 145 × 122 × 15.5Bronze PTFE
27PKM-150-127-15.5SPGW – 150 × 127 × 15.5Bronze PTFE
28PKM-155-132-15.5SPGW – 155 × 132 × 15.5Bronze PTFE
29PKM-160-137-15.5SPGW – 160 × 137 × 15.5Bronze PTFE
30PKM-160-140-16SPGW – 160 × 140 × 16Bronze PTFE
31PKM-165-142-15.5SPGW – 165 × 142 × 15.5Bronze PTFE
32PKM-170-147-15.5SPGW – 170 × 147 × 15.5Bronze PTFE
33PKM-175-152-15.5SPGW – 175 × 152 × 15.5Bronze PTFE
34PKM-180-157-15.5SPGW – 180 × 157 × 15.5Bronze PTFE
35PKM-185-162-15.5SPGW – 185 × 162 × 15.5Bronze PTFE
36PKM-190-167-15.5SPGW – 190 × 167 × 15.5Bronze PTFE
37PKM-195-172-15.5SPGW – 195 × 172 × 15.5Bronze PTFE
38PKM-200-177-15.5SPGW – 200 × 177 × 15.5Bronze PTFE
39PKM-205-182-15.5SPGW – 205 × 182 × 15.5Bronze PTFE
40PKM-210-187-15.5SPGW – 210 × 187 × 15.5Bronze PTFE
41PKM-215-192-15.5SPGW – 215 × 192 × 15.5Bronze PTFE
42PKM-220-197-15.5SPGW – 220 × 197 × 15.5Bronze PTFE
43PKM-225-202-15.5SPGW – 225 × 202 × 15.5Bronze PTFE
44PKM-230-207-15.5SPGW – 230 × 207 × 15.5Bronze PTFE
45PKM-240-217-15.5SPGW – 240 × 217 × 15.5Bronze PTFE
46PKM-250-222-17SPGW – 250 × 222 × 17Bronze PTFE

Monday

8:00 - 16:30

Tuesday

8:00 - 16:30

Wednesday

8:00 - 16:30

Thursday

8:00 - 16:30

Friday

8:00 - 16:00

Saturday

Closed

Sunday

Closed