Technical Data
Weldless Steel Tanks for Hydraulic Power Units
Built for hydraulic power packs, these weldless steel tanks deliver leak-free performance straight out of the box. Fabricated from high-strength cold-rolled steel using a deep-drawing process — no welds, no weak points — and sealed with an NBR 70 gasket that traps leaks, absorbs vibration, and reduces noise.
Available in eight capacities from 6 to 250 litres, with a range of configurable lid styles and bellhousing diameters to suit your power unit layout.
Key Features
- 100% leak-free construction** — weldless deep-drawn steel body, no welded joints
- Eight capacities** — 6, 12, 25, 40, 70, 100, 160, and 250 litre options
- 2 mm body / 3 mm cover** — high-strength cold-rolled steel throughout
- NBR 70 sealing gasket** — traps oil, absorbs vibration, reduces noise
- Four lid styles** — blank, air breather, air breather + bellhousing, or full combination with return filter hole
- Bellhousing diameters from 140 to 400 mm** — matched to capacity
- Electrostatic epoxy-polyester powder coat** — phosphate-treated for surface protection
- Standard colour RAL 5007 Brilliant Blue** — custom colour available on request
- Ready-to-fit oil level indicator** — available as an option
- Optional cleaning hole** — front or side position on larger capacities
Ordering Information
- Tanks are configured to order using the HPWST part number system. Specify:
- Capacity (6, 12, 25, 40, 70, 100, 160, or 250 litres)
- Cover style (X = no cover, A = cover only, B = air breather, C = air breather + bellhousing, D = air breather + bellhousing + return filter)
- Bellhousing diameter (140–400 mm, capacity-dependent)
- Cleaning hole position (A = front, B = side, C = none)
- Assembly (1 = bottom, 2 = behind — 6 and 12 litre only)
Example order code: HPWST 70 C 250 C 1
(70 litre, air breather + 250 mm bellhousing hole, no cleaning hole, bottom assembly)


















