Single-Action Hydraulic Cylinder for scissor lifts 200 bar // series: HZE4
General information
Series HZE4 was developed especially for installation into lifts up to 200 bar. It is characterized by a robust construction with minimum installation dimensions. The cylinders are designed for an operating pressure of 200bar in accordance with VBG14 (Lifting Platforms). The cylinder can be alternatively supported using a ball-and-socket joint that is maintenance-free or that can be relubricated. The connecting bore is designed for a burst pipe safety device or for a brake valve. The cylinder can be vented using the base-side or rod-side vent screw depending on the installation position. According to application, various sealing sets are included in the delivery of the cylinders. Various materials are available for the piston rods.
| Technical Data | |
|---|---|
| Max. operating pressure | = 200 bar |
| Test pressure | = 250 bar |
| Rod ∅ | = 40 – 100 mm |
| Temperature range (of the hydraulic fluid) | = -20°C to +80°C |
| Pressure fluid | = Mineral oil (HL, HLP) according to DIN 51524 and DIN 51525 (standard) |
| Stroke speed | = ≤ 0,5 m/s |
Length and stroke tolerances according to DIN7168g (see “Technical Information“)
| Mounting types | ||
|---|---|---|
| Ball-and-socket joint on both sides | (DO – Standard) | zu HZE4 |
(GE..DO wartungspflichtig)
(.GE..HO wartungspflichtig)
(GE..UK wartungsfrei)
Product specifications
Order key
Please click here to download the order key .
The connecting bore is located on the base-side end of the cylinder and can be designed for line breakage and brake valves. The position along the perimeter can be changed (Standard P8).
| D1 – Groove ring and scraper made of polyurethane (standard) | |
|---|---|
| Temperature | -30°C to +80°C |
| Pressure fluid | Mineral oil |
| Stroke speed | ≤ 0,5 m/s |
| Application | Standard sealing set for normal operating conditions, very high resistance to wear |
| D2 – Axial seal ring set consisting of PTFE STEP SEALS (O-ring seal made of NBR) Double scraper (polyurethane) |
|
|---|---|
| Temperature | -30°C to +100°C |
| Pressure fluid | Mineral oil, flame-retardant pressure fluids HFA and HFB up to +40°C; HFC up to +60°C |
| Stroke speed | ≤ 1 m/s |
| Application | Mineral oil, flame-retardant pressure fluids HFA and HFB up to +40°C; HFC up to +60°C |
| D2V – Axial seal ring set consisting of PTFE STEP SEALS (O-ring seal made of Viton) Double scraper (Viton O-ring seals) |
|
|---|---|
| Application | Sealing set for high sliding speeds, no stick-slip effect, greater leakage than in the case of D1 and D3, for higher temperatures (+200°C) and fluids on a phosphate ester basis (HFD) |
| D3 – Tandem sealing set consisting of groove ring (polyurethane) and PTFE STEP SEAL | |
|---|---|
| Temperature | -30°C to +80°C |
| Pressure fluid | Mineral oil |
| Stroke speed | ≤ 0,8 m/s |
| Application | Sealing set for high loads at minimum leakage,smooth-running stroke movements |
Theoretical cylinder force in [kN] (efficiency = 100%)
| Rod Ø [mm] | Pressure area [mm²] | Operating pressure in | |||
|---|---|---|---|---|---|
| 50 | 100 | 150 | 200 | ||
| 40 | 1256,6 | 6,3 | 12,6 | 18,8 | 25,1 |
| 50 | 1963,5 | 9,8 | 19,6 | 29,5 | 39,3 |
| 60 | 2827,4 | 14,1 | 28,3 | 42,4 | 56,5 |
| 70 | 3848,5 | 19,2 | 38,5 | 57,7 | 77,0 |
| 90 | 6361,7 | 31,8 | 63,6 | 95,4 | 127,2 |
| 100 | 7854,0 | 39,3 | 78,5 | 117,8 | 157,1 |
