HWG Double Acting Wiper Seal for hydraulic cylinders. Designed with a reinforced metal case and polyurethane for superior dust exclusion, oil retention, wear resistance, and long service life in construction, agricultural, and industrial equipment.
Item NO.:
HWGOrder(MOQ):
50Payment:
T/TProduct Origin:
ChinaShipping Port:
ShanghaiProduct Description
HWG Double Acting Wiper Seal is a high-performance cylinder dust seal designed for hydraulic cylinders operating in harsh environments. Featuring a reinforced metal case and a durable polyurethane sealing lip, this PU wiper seal for Hydraulic Cylinder effectively removes dust, mud, moisture, and other contaminants from the rod surface while helping maintain a stable residual oil film inside the system.
Designed as a Double Acting Scraper Seal HWG, it provides enhanced bidirectional wiping performance, ensuring consistent contamination control during both extension and retraction strokes. This design double acting wiper seal structure improves sealing reliability and reduces wear on hydraulic components.
Acting as both a reliable dust seal ring and a heavy-duty wiper seal, the HWG model is widely used in construction machinery, agricultural equipment, forklifts, and other mobile hydraulic systems where long service life and stable sealing performance are required.
Technical Data
| Parameter | Value |
| Operating temperature |
-50°C to +100°C (M1001) -20°C to +120°C (M1112) |
| Surface speed | ≤ 1 m/s |
| Material | Polyurethane (PU P2001/P2112)+Metal case (SPCC) |
| Material Grade | M1001 / M1112 |
| Design type | Double-Acting Wiper Seal |
| Unit system | Metric |
Features & Benefits
Manufactured from high-quality polyurethane compounds for outstanding abrasion resistance and long service life.
HWG dust seal’s unique sealing lip design ensures excellent dust-scraping performance without disrupting the oil film on the piston rod. Additionally, the sealing lip features a small hole that prevents the dust seal from being forced out of the groove under potential “pressure trapping,” thereby extending its service life.
The reinforced metal insert ensures secure installation and prevents seal displacement under demanding operating conditions.
Product Parameter Table
| Designation | Rod diameter | Housing groove diameter | Housing groove width | Primary sealing element |
| [mm] | [mm] | [mm] | ||
| HWF 32X45X7 M1001 | 32 | 45 | 7 | Polyurethane (PU P2005) |
| HWF 35X47X7 M1001 | 35 | 47 | 7 | Polyurethane (PU P2005) |
| HWF 45X57X7 M1001 | 45 | 57 | 7 | Polyurethane (PU P2005) |
| HWF 50X62X7 M1001 | 50 | 62 | 7 | Polyurethane (PU P2005) |
| HWF 55X69X8 M1001 | 55 | 69 | 8 | Polyurethane (PU P2005) |
| HWF 60X74X8 M1001 | 60 | 74 | 8 | Polyurethane (PU P2005) |
| HWF 63X77X8 M1001 | 63 | 77 | 8 | Polyurethane (PU P2005) |
| HWF 65X79X8 M1001 | 65 | 79 | 8 | Polyurethane (PU P2005) |
| HWF 70X84X8 M1001 | 70 | 84 | 8 | Polyurethane (PU P2005) |
| HWF 75X89X8 M1001 | 75 | 89 | 8 | Polyurethane (PU P2005) |
| HWF 80X94X8 M1001 | 80 | 94 | 8 | Polyurethane (PU P2005) |
| HWF 85X99X8 M1001 | 85 | 99 | 8 | Polyurethane (PU P2005) |
| HWF 90X104X8 M1001 | 90 | 104 | 8 | Polyurethane (PU P2005) |
| HWF 95X109X8 M1001 | 95 | 109 | 8 | Polyurethane (PU P2005) |
| HWF 100X114X8 M1001 | 100 | 114 | 8 | Polyurethane (PU P2005) |
| HWF 110X126X9 M1001 | 110 | 126 | 9 | Polyurethane (PU P2005) |
| HWF 110X130X10 M1001 | 110 | 130 | 10 | Polyurethane (PU P2005) |
| HWF 120X136X9 M1001 | 120 | 136 | 9 | Polyurethane (PU P2005) |
| HWF 125X141X9 M1001 | 125 | 141 | 9 | Polyurethane (PU P2005) |
| HWF 140X160X10 M1001 | 140 | 160 | 10 | Polyurethane (PU P2005) |
| HWF 150X170X10 M1001 | 150 | 170 | 10 | Polyurethane (PU P2005) |
| HWF 160X180X10 M1001 | 160 | 180 | 10 | Polyurethane (PU P2005) |
HWG Wiper Seals
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| Material code | M1001/M1112 |
| Speed | Up to 1 m/s (3.2 ft/s) |
| Temperature range | –50 to +100 °C (–58 to +212 °F) –20 to +120 °C (–4 to +248 °F) |
| Dimension standards | Some sizes fit seal housings in accordance with ISO 6195-B:2013. |
| Size list | → Metric |
| Additional information | → Double-Acting Wiper Seals |
| Maximum values of application parameters (e.g. speed, temperature) should not be applied continuously nor simultaneously. | |
GWJ metal-cased hydraulic wiper seals effectively block dust, dirt, sand and metallic debris from infiltrating the piston rod end pin. A unique feature (see Figure 1) is its specialized dust-exclusion lip design. Refer to the GWJ seal specifications below for full details.
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