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Home > Products > Piston seal > SPG – Excavator Heavy Duty Piston Hydraulic seal
SPG – Excavator Heavy Duty Piston Hydraulic seal
SPG – Excavator Heavy Duty Piston Hydraulic seal

SPG – Excavator Heavy Duty Piston Hydraulic seal

SPG – Excavator Heavy Duty Piston Hydraulic seal

Type
SPG
Delivery Time
3-7 days
Quality
High-quality
Service
Standard product/Customized product
Brand
DSH
Price
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SPG is a compact double-acting piston seal for medium to heavy duty applications. The reinforced, thermally stable thermoplastic sealing surface
with stepped joints allows the seal to pass through the port, making it ideal for double acting telescopic
cylinders.

It consists of a bronze-filled PTFE face ring preloaded by a square-section NBR
ring. The cover ring is precision machined from a compression molded blank. Compression molding of this material
provides consistently superior physical properties compared to automated molded products. The machined face ring
has a chamfer for easy installation and the surface finish is not affected by the “orange peel” effect of the
molded product. Since only the PTFE face ring is in contact with the sliding surface, the friction is very low and
the stick-slip motion is eliminated. The width of the housing allows the designer to use a narrow width piston, but
it is recommended to install enough bearings on either side of the seal.

 

Characteristics

 

  • High static and dynamic sealing effect;

  • High resistance to extrusion;

  • low friction, high efficiency;

  • no sliding start, no adhesion;

  • High wear resistance and high operational reliability;

  • HWide application temperature range and high chemical resistance, depending on
    the choice of material for the ring;

  • Easy installation.

 

◆◆ PTFE,nbr/fkm rubber

 

Material description PTFE filled Bronze, PTFE filled carbon fiber and MoS2, PTFE filled Graphite, PTFE filled PI, and so on.
Available Color Black, green, coffee, white, brown, gold and so on
Material Strength SPG seals have excellent chemical resistance and wear resistance, particular rigidity and almost unlimited
ozone, weathering and aging resistance.
temperature -40~+160℃
Speed ≤2m/s
Pressure ≤35MPa
Applied device： Excavators / standard cylinders / Mobile hydraulics / Presses

 

DSH-High-quality Piston Seal Ring | Excavator Heavy Duty Piston Seal
DSH-High-quality Piston Seal Ring | Excavator Heavy Duty Piston Seal-1
DSH-High-quality Piston Seal Ring | Excavator Heavy Duty Piston Seal-2
DSH-High-quality Piston Seal Ring | Excavator Heavy Duty Piston Seal-3
DSH-High-quality Piston Seal Ring | Excavator Heavy Duty Piston Seal-4
DSH-High-quality Piston Seal Ring | Excavator Heavy Duty Piston Seal-5

 

◆◆ PTFE,nbr/fkm rubber

 

DSH-High-quality Piston Seal Ring | Excavator Heavy Duty Piston Seal-6
Technical Data
Pressure Temperature Sliding speed Medium
 Elastomer slide ring
Standard NBR PTFE-Bronze
Standard  (on request) FKM PTFE-carbon
pressure 160bar 250bar 400bar
Max Gap E E≤0.6mm E≤0.4mm E≤0.2mm
Order Example for standard version:
Diameter  D=100mm
Order Code： SPG 100*85*7.5
Installation Dimension table based on Metric Size(mm)
30~60 D-9.5 4.5 4.3 0.8 3
63~160 D-15 7.5 7.3 1.2 5
170~250 D-22 11 10.8 1.6 5
260~400 D-24 12 11.7 1.6 7
485~900 D-30 15 14.8 2 7.5
930~1500 D-40 20 19.7 2 7.5
Order List
Order Number D d H h Order Number D d H h
SPG 0300 30 20.5 4.5 4.3 SPG 2040 204 182 11 10.8
SPG 0315 31.5 22 4.5 4.3 SPG 2100 210 188 11 10.8
SPG 0320 32 22.5 4.5 4.3 SPG 2150 215 193 11 10.8
SPG 0350 35 25.5 4.5 4.3 SPG 2200 220 198 11 10.8
SPG 0355 35.5 26 4.5 4.3 SPG 2240 224 202 11 10.8
SPG 0400 40 30 4.5 4.3 SPG 2250 225 203 11 10.8
SPG 0450 45 35 4.5 4.3 SPG 2300 230 208 11 10.8
SPG 0500 50 40 4.5 4.3 SPG 2400 240 218 11 10.8
SPG 0550 55 45 4.5 4.3 SPG 2500 250 228 11 10.8
SPG 0560 56 46 4.5 4.3 SPG 2600 260 236 12 11.7
SPG 0600 60 50 4.5 4.3 SPG 2700 270 246 12 11.7
SPG 0630 63 48 7.5 7.3 SPG 2800 280 256 12 11.7
SPG 0650 65 50 7.5 7.3 SPG 2900 290 266 12 11.7
SPG 0690 69 54 7.5 7.3 SPG 3000 300 276 12 11.7
SPG 0700 70 55 7.5 7.3 SPG 3100 310 286 12 11.7
SPG 0710 71 56 7.5 7.3 SPG 3200 320 296 12 11.7
SPG 0750 75 60 7.5 7.3 SPG 3300 330 308 10 9.75
SPG 0800 80 65 7.5 7.3 SPG 3600 360 336 12 11.7
SPG 0850 85 70 7.5 7.3 SPG 4000 400 376 12 11.7
SPG 0900 90 75 7.5 7.3 SPG 4850 485 455 15 14.8
SPG 0950 95 80 7.5 7.3 SPG 5000 500 470 15 14.8
SPG 1000 100 85 7.5 7.3 SPG 5500 550 515 17.5 17.2
SPG 1050 105 90 7.5 7.3 SPG 6000 600 570 15 14.8
SPG 1080 108 92 7.5 7.3 SPG 6500 650 620 15 14.8
SPG 1100 110 94 7.5 7.3 SPG 7200 720 690 13 14.8
SPG 1120 112 96 7.5 7.3 SPG 8000 800 785 13 12.7
SPG 1200 120 104 7.5 7.3 SPG 9000 900 870 25 24.5
SPG 1250 125 109 7.5 7.3 SPG 9300 930 890 20 19
SPG 1300 130 114 7.5 7.3 SPG 9350 935 920 13 12.7
SPG 1350 135 119 7.5 7.3 SPG 9500 950 925 18 17.7
SPG 1400 140 124 7.5 7.3 SPG 10000 1000 960 20 19.7
SPG 1450 145 129 7.5 7.3 SPG 10600 1060 1020 20 19.7
SPG 1500 150 134 7.5 7.3 SPG 11200 1120 1080 20 19.7
SPG 1550 155 139 7.5 7.3 SPG 11500 1150 1110 20 19.7
SPG 1600 160 144 7.5 7.3 SPG 11800 1180 1130 20 19.7
SPG 1700 170 148 11 10.8 SPG 12100 1210 1170 20 19
SPG 1800 180 158 11 10.8 SPG 12500 1250 1210 20 19.7
SPG 1900 190 168 11 10.8 SPG 12600 1260 1220 20 19.7
SPG 2000 200 178 11 10.8 SPG 14000 1400 1350 20 19.7


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