H780 Double-acting Piston Seal | Hallite Seal
H780 Double-acting Piston Seal overview
The H780 Double-Acting Piston Seal | Hallite Seal is a premium, robust 5-piece assembly compact seal engineered specifically for both one-piece and two-piece pistons in heavy-duty hydraulic systems. Designed to deliver exceptional fluid power control, the H780 ensures maximum stability and zero leakage in medium to high-pressure environments.
Whether you are an OEM repair shop or a global hydraulic components distributor, the H780 seals offer the exact reliability your industrial machinery, excavators, and agricultural equipment demand.
Key parameters
| Parameter | Value |
|---|---|
| Material | POM+NBR |
| Performance | Temperature range -30 to +100°C, speed ≤0.5 m/s, working pressure 350 bar; |
| Function | When under pressure, the rubber ring pushes the support ring and guide ring against the cylinder wall, ensuring that pressure is maintained even after the seal has undergone wear. |
Available sizes
114 size(s) recorded for this profile. Dimensions in millimetres unless noted otherwise.
| Part Number | Inner Diameter (ID) | Outer Diameter (OD) | Slot Width 1 (L1) | Slot Width 2 (L2) |
|---|---|---|---|---|
| H780-5006710 | 20 | 11 | 13.5 | 2.1 |
| H780-5003710 | 25 | 15 | 12 | 4 |
| H780-5003730 | 25 | 15 | 12.5 | 4 |
| H780-5003810 | 25 | 16 | 13.5 | 2.1 |
| H780-5006410 | 30 | 17 | 15.4 | 6.35 |
| H780-5003910 | 30 | 21 | 13.5 | 2.1 |
| H780-5001420 | 32 | 22 | 15.5 | 2.6 |
| H780-5001410 | 32 | 22 | 16.4 | 6.35 |
| H780-5009210 | 32 | 24 | 15.5 | 3.2 |
| H780-5001520 | 35 | 25 | 15.5 | 2.6 |
| H780-5001510 | 35 | 25 | 16.4 | 6.35 |
| H780-5001310 | 40 | 24 | 18.4 | 6.35 |
| H780-5008010 | 40 | 26 | 15.5 | 2.6 |
| H780-5008610 | 40 | 30 | 10 | 5 |
| H780-5005810 | 40 | 30 | 12.5 | 4 |
| H780-5005820 | 40 | 30 | 12.5 | 4 |
| H780-5004010 | 40 | 30 | 16.4 | 6.35 |
| H780-5008110 | 40 | 32 | 15.5 | 3.2 |
| H780-5008510 | 44.45 | 35.05 | 12.45 | 6.1 |
| H780-5000710 | 45 | 29 | 18.4 | 6.35 |
| H780-5004110 | 45 | 31 | 15.5 | 2.6 |
| H780-5001610 | 45 | 35 | 16.4 | 6.35 |
| H780-5000810 | 50 | 34 | 18.4 | 6.35 |
| H780-5000820 | 50 | 34 | 20.5 | 3.1 |
| H780-5004810 | 50 | 38 | 20.5 | 4.2 |
| H780-5005910 | 50 | 40 | 12.5 | 4 |
| H780-5010910 | 50.8 | 34.93 | 19.05 | 6.35 |
| H780-5010010 | 50.8 | 41.28 | 12.45 | 6.1 |
| H780-5000910 | 55 | 39 | 18.4 | 6.35 |
| H780-5000920 | 55 | 39 | 20.5 | 3.1 |
| H780-5009110 | 55 | 45 | 12.5 | 4 |
| H780-5011010 | 57.15 | 41.28 | 19.05 | 6.35 |
| H780-5001010 | 60 | 44 | 18.4 | 6.35 |
| H780-5001020 | 60 | 44 | 20.5 | 3.1 |
| H780-5004910 | 60 | 48 | 20.5 | 4.2 |
| H780-5001030 | 60.33 | 44.45 | 19.3 | 6.35 |
| H780-5001110 | 63 | 47 | 18.4 | 6.35 |
| H780-5001120 | 63 | 47 | 19.4 | 6.35 |
| H780-5001130 | 63 | 47 | 20.5 | 3.1 |
| H780-5005010 | 63 | 51 | 20.5 | 4.2 |
| H780-5006010 | 63 | 53 | 12.5 | 4 |
| H780-5011110 | 63.5 | 47.63 | 19.05 | 6.35 |
| H780-5010110 | 63.5 | 50.8 | 16.51 | 6.1 |
| H780-5005510 | 65 | 49 | 20.5 | 3.1 |
| H780-5001210 | 65 | 50 | 18.4 | 6.35 |
| H780-5010710 | 65 | 53 | 20.5 | 4.2 |
| H780-5000210 | 70 | 50 | 22.4 | 6.35 |
| H780-5004210 | 70 | 54 | 20.5 | 3.1 |
| H780-5005110 | 70 | 58 | 20.5 | 4.2 |
| H780-5000310 | 75 | 55 | 22.4 | 6.35 |
| H780-5004310 | 75 | 59 | 20.5 | 3.1 |
| H780-5010810 | 75 | 63 | 20.5 | 4.2 |
| H780-5011210 | 76.2 | 57.15 | 23.8 | 6.35 |
| H780-5010210 | 76.2 | 60.33 | 19.76 | 6.1 |
| H780-5000110 | 80 | 60 | 22.4 | 6.35 |
| H780-5000120 | 80 | 60 | 25 | 6.3 |
| H780-5004410 | 80 | 62 | 22.5 | 3.6 |
| H780-5008710 | 80 | 65 | 20 | 5 |
| H780-5005210 | 80 | 66 | 22.5 | 5.2 |
| H780-5000410 | 85 | 65 | 22.4 | 6.35 |
| H780-5011310 | 88.9 | 69.85 | 23.8 | 6.35 |
| H780-5010310 | 88.9 | 72.44 | 19.76 | 7.37 |
| H780-5000510 | 90 | 70 | 22.4 | 6.35 |
| H780-5007910 | 90 | 72 | 22.5 | 3.6 |
| H780-5005310 | 90 | 76 | 22.5 | 5.2 |
| H780-5000610 | 95 | 75 | 22.4 | 6.35 |
| H780-5001710 | 100 | 75 | 22.4 | 6.35 |
| H780-5004710 | 100 | 80 | 25 | 6.3 |
| H780-5004510 | 100 | 82 | 22.5 | 3.6 |
| H780-5006110 | 100 | 85 | 20 | 5 |
| H780-5005410 | 100 | 86 | 22.5 | 5.2 |
| H780-5011410 | 101.6 | 82.55 | 23.8 | 6.35 |
| H780-5010410 | 101.6 | 85.75 | 19.76 | 6.1 |
| H780-5001810 | 105 | 80 | 22.4 | 6.35 |
| H780-5001910 | 110 | 85 | 22.4 | 6.35 |
| H780-5007810 | 110 | 92 | 22.5 | 3.6 |
| H780-5011510 | 114.3 | 88.9 | 31.75 | 6.35 |
| H780-5010510 | 114.3 | 98.45 | 19.76 | 6.1 |
| H780-5002010 | 115 | 90 | 22.4 | 6.35 |
| H780-5002110 | 120 | 95 | 22.4 | 6.35 |
| H780-5008810 | 120 | 106 | 22.5 | 5.2 |
| H780-5002310 | 125 | 100 | 25.4 | 6.35 |
| H780-5007710 | 125 | 103 | 26.5 | 5.1 |
| H780-5006210 | 125 | 105 | 25 | 6.3 |
| H780-5011610 | 127 | 101.6 | 31.75 | 9.53 |
| H780-5010610 | 127 | 108 | 24.33 | 6.1 |
| H780-5002420 | 130 | 105 | 25.4 | 6.35 |
| H780-5002410 | 130 | 105 | 25.4 | 9.5 |
| H780-5002510 | 135 | 110 | 25.4 | 9.5 |
| H780-5002220 | 140 | 115 | 25.4 | 6.35 |
| H780-5002210 | 140 | 115 | 25.4 | 9.5 |
| H780-5002610 | 145 | 120 | 25.4 | 9.5 |
| H780-5002710 | 150 | 125 | 25.4 | 9.5 |
| H780-5002720 | 150 | 125 | 25.4 | 6.35 |
| H780-5011710 | 152.4 | 127 | 31.75 | 9.53 |
| H780-5002810 | 155 | 130 | 25.4 | 9.5 |
| H780-5004610 | 160 | 130 | 25.4 | 9.5 |
| H780-5004620 | 160 | 130 | 25.4 | 6.35 |
| H780-5005610 | 160 | 135 | 25.4 | 9.5 |
| H780-5008910 | 160 | 143 | 26.5 | 7.2 |
| H780-5002910 | 165 | 140 | 25.4 | 9.5 |
| H780-5003010 | 170 | 145 | 25.4 | 12.7 |
| H780-5003110 | 175 | 150 | 25.4 | 12.7 |
| H780-5006310 | 180 | 150 | 35.4 | 6.35 |
| H780-5003210 | 180 | 155 | 25.4 | 12.7 |
| H780-5003310 | 185 | 160 | 25.4 | 12.7 |
| H780-5003410 | 190 | 165 | 25.4 | 12.7 |
| H780-5003510 | 195 | 170 | 25.4 | 12.7 |
| H780-5003610 | 200 | 175 | 25.4 | 12.7 |
| H780-5008210 | 210 | 185 | 25.4 | 12.7 |
| H780-5008310 | 220 | 195 | 25.4 | 12.7 |
| H780-5006510 | 230 | 205 | 25.4 | 12.7 |
| H780-5008410 | 240 | 215 | 25.4 | 12.7 |
| H780-5006610 | 250 | 225 | 25.4 | 12.7 |
Applications
- Construction Machinery: Hydraulic excavators, loaders, dump trucks, and cranes etc.
- Agricultural Equipment: Tractors, harvesters, and specialized attachments etc.
- Industrial Hydraulics: Hydraulic presses, and material handling systems etc.
Request a quote
Send your part number, size list or drawing with quantity to DJF Seal for a quotation. We supply B2B, wholesale and OEM volumes with export packing.
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