///Single-Action Hydraulic Cylinder for scissor lifts 200 bar // series: HZE4
Single-Action Hydraulic Cylinder for scissor lifts 200 bar // series: HZE4 2018-03-03T14:10:35+02:00

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).

EW-200

In case of long strokes, the supporting width of the piston rod in the cylinder tube can be changed to reduce the load of the guidance system in the fully extended state. This also depends on the type of installation and the cylinder model.

D1

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

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

D2-V

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

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
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