Double-Action Hydraulic Cylinder up to 250 bar //
HZD3
General Information
The HZD3 series cylinders are double-action pressure cylinders without end position damping that are uni-versally 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 high-tensile structural steel with an approximately 25m hard chromium-plated layer. Other materials and coat-ings are available on request.
Please consult us in case of radial forces and non-vertical installation.
Technical Information | |
|---|---|
| Maximal operating pressure | = 250 bar |
| Testing pressure | = 315 bar |
| Piston Ø | = 25 – 200 mm |
| Accepted temperature range of the hydraulic fluid | = -20°C up to +80°C |
| Hydraulic fluid | = mineral oil (HL, HLP) according to DIN 51524 & DIN 51525 (standard) |
| Stroke speed | = ≤ 0,5 m/s (Standard) |
Length and stroke tolerances according to DIN7168g (see >>Technical Information)
Mounting Type | Data Sheet | ||
|---|---|---|---|
| A | Base-side ball-and-socket joint | (DO – Standard) | >> Bauform-A |
| E | Rod-side trunnion | >> Bauform-E | |
| F | Rod-side flange | >> Bauform-F | |
| H | Ball-and-socket joint on both sides | (DO – Standard) | >> Bauform-H |
Accessories | Data Sheet | ||
|---|---|---|---|
| A-.. | Rod clevis | (GE-DO subject to maintenance) | >> Gelenkkopf-A |
| B-.. | Rod clevis | (GE-DO subject to maintenance) | >> Gelenkkopf-B |
| G-.. | Rod clevis | (Tolerance field H11) | >> Gelenkkopf-G |
Additional Information
Order Key
Click >> this linkto download the order key in PDF format.
Connecting Bore
The pipe thread of the connecting bore is designed according to ISO 228/1. The position along the perimeter can be changed (Standard P7/P8).
For long strokes, the support width of the piston rod in the cylinder tube can be changed in order to reduce the load on the guide system when fully extended. This also depends on the type of installation and the design of the cylinder.
D1 - Groove ring and scraper made of polyurethane and a compact seal (NBR) on the piston (standard) | |
|---|---|
| Temperature range | -30°C to +80°C |
| Hydraulic fluid | Mineral oil |
| Stroke speed | ≤ 0,5 m/s |
| Application | Standard seal set for normal operating conditions, offers very high resistance to wear |
D2 - Axial seal ring set consisting of PTFE STEP SEALS (O-ring seal made of NBR), double scraper (polyurethane) and a PTFE Glyd ring (NBR O ring seal) on the piston | |
|---|---|
| Temperature range | -30°C to +100°C |
| Hydraulic fluid | Mineral oil, flame-retardant hydraulic fluids HFA and HFB up to +40°C |
| Stroke speed | ≤ 1 m/s |
| Application | Seal set for high sliding speeds, no stick-slip effect, higher leakage compared to D1 and D3 |
D2V - Axial seal ring set consisting of PTFE STEP SEALS (O-ring seal made of Viton) Double scraper(Viton O-ring seals) and a PTFE Glyd ring (Viton O ring seal) on the piston | |
|---|---|
| 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 and a compact seal (NBR-PTFE) on the piston | |
|---|---|
| Temperature range | -30°C to +80°C |
| Hydraulic 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%)
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