Single-Action Hydraulic Cylinders 250 bar // series: HZ5

General information

The HZE5 series cylinders are single-action pressure cylinders that are universally applicable due to their various models and sealing variants. The piston rod guide is designed to be screwable for maintenance tasks. The piston rod consists of hightensile structural steel with an approximately 25µm hard chromium-plated layer. Other materials and coatings are available on request. The end of the piston rod is guided into the cylinder tube, which minimizes the wear of the piston rod guide and the seal.

Please consult us in case of radial forces and non-vertical installation.

Technical data
Max. operating pressure = 250 bar
Test pressure = 315 bar
Rod ∅ = 60 – 120 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 (Standard)

Length and stroke tolerances according to DIN7168g (see “Technical Information“)

Mounting types
A Base-side ball-and-socket joint (DO – standard) Model A
E Trunnion Model E
F Rod-side flange Model F
H Ball-and-socket joint on both sides  (DO – standard) Model H
Accessoires
A-.. Rod end (GE-DO subject to maintenance) Rod end A
B-.. Rod end (GE-HO subject to maintenance) Rod end B

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, whereby the height of the fitting changes.
The position along the perimeter can be changed (Standard P8).

Threaded connection Line break. safety dev Brake valve
Height Thread depth Height Thread depth
G1/4″ 40 32 55 32
G3/8″ 50 35 60 34
G1/2″ 55 44 70 40
G3/4″ 65 51 80 51

EW-250

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

Theoretical cylinder force in [kN] (efficiency = 100%)

Rod Ø [mm] Pressure area [mm²] Operating pressure in [bar]
50 100 150 200 250
50 1963,5 9,8 19,6 29,5 39,9 49,1
60 2827,4 14,1 28,3 42,4 56,5 70,7
70 3848,5 19,2 38,5 57,7 77,0 96,2
90 6361,7 31,8 63,6 95,4 127,2 159,0
100 7854,0 39,3 78,5 117,8 157,1 196,3
110 9503,3 47,5 95,0 142,5 190,1 237,5
120 11309,7 56,5 113,1 169,6 226,2 282,7
130 13273,2 66,4 132,7 199,1 265,5 331,8
140 15393,8 77,0 153,9 230,9 307,9 384,8
150 17671,5 88,4 176,7 265,1 353,4 441,8