The HBS family consists of 4 sub-series, and choosing the right one takes more than checking a single tonnage figure: system type (single/double-acting), body construction (solid / hollow-plunger), closed-height constraints, and stroke requirements all need to be weighed together. This guide covers the comparison table for all 4 series and the model selection steps.
The core series used across the full range of maintenance, assembly, lifting and pressing applications.
Closed height as low as 88 mm on the most compact model — for tight clearances a standard cylinder can't fit into.
Hollow-plunger body; for pulling and tensioning applications over a stud, shaft, or rod.
Hydraulically controlled return; independent push/pull capacity for precise positioning.
| Criterion | HBS-GA | HBS-DP | HBS-DL | HBS-CT |
|---|---|---|---|---|
| System | Single-acting · spring-return | Single-acting · spring-return | Single-acting · spring-return | Double-acting · hydraulic return |
| Capacity Range | 10–95 t | 10–90 t | 20–95 t | 30–95 t |
| Number of Models | 9 models | 5 models | 4 models | 6 models |
| Body Construction | Solid body | Solid body, wide base | Hollow-plunger | Solid body |
| Standout Feature | Widest model range | Lowest closed height (88 mm) | Passes over stud/shaft | Independent push/pull capacity |
| Typical Use | Maintenance, assembly, lifting, pressing | Restricted access, machine alignment | Pulling, tensioning, test loading | Controlled assembly/disassembly, heavy maintenance |
| Connection | 3/8″ NPT/F (single line) | 3/8″ NPT/F (single line) | 3/8″ NPT/F (single line) | 2× 3/8″ NPT/F (separate push/pull lines) |
// All series run on a 700 bar class hydraulic pump. Body: 7075-T6 aluminum alloy, hard-anodized coating; on the GA / DP / DL series, roughly 60% lighter than an equivalent steel model.
Calculate the force, in tons or kN, of the load to be lifted, pressed, or pulled. This is the first criterion that determines which capacity range you should look at.
Is the closed height tight? Consider HBS-DP. Will you be working over a stud, shaft, or rod? You need HBS-DL. Do you need controlled two-directional motion? Look at HBS-CT. If none of these constraints apply, HBS-GA is the general-purpose solution.
Measure the distance between the starting and target position, and mark the model in your chosen series' model table that provides a stroke equal to or greater than this value.
Confirm the model code at the intersection of capacity and stroke from the full model table on the relevant product page. For measurements near the boundary between two models, choosing the next capacity up gives you a safety margin.
The entire HBS series is designed to run on the same 700 bar class hydraulic pump family.
The 7075-T6 aluminum alloy body makes the GA / DP / DL series roughly 60% lighter than an equivalent steel model.
A hardened, precision-ground piston surface provides wear resistance under repeated use.
The 3/8″ NPT/F connection standard gives direct compatibility with existing pumps and hose sets.
Standard seal kits enable fast maintenance; there's no need to source series-specific spare parts separately.
A hard-anodized body surface improves corrosion resistance in field conditions.
Not sure which series you need? Send us your target force, stroke, and working-space dimensions — Hydro Bard engineering will confirm the right HBS model for you at no cost.
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