Buy Hydraulic Rams & Tools Online in Australia
Hydraulic Ram Selection — Quick Reference
Hydraulic rams + cylinders deliver enormous force from compact tools — pressing, lifting, pulling, bending, splitting. Selection turns on action type (single vs double-acting), tonnage rating, stroke length, and whether porting is single or twin.
| Ram Type | Action | Best For |
|---|---|---|
| Single-Acting (Spring Return) | Extends under pressure, retracts under spring | Pressing, lifting — most common type for workshop |
| Single-Acting (Gravity Return) | Extends under pressure, retracts under load weight | Lifting heavy machinery, jacking |
| Double-Acting (Twin Port) | Powered extension + powered retraction | Production work, controlled return, holding pull |
| Low-Profile (Pancake) | Single or double | Limited vertical clearance — tight spaces |
| Hollow Ram (Center Hole) | Single or double | Pulling shafts, bolts, broken studs through the centre |
| Long-Stroke | Single or double | Extended reach — bushing presses, machinery levelling |
| Pull Cylinder (Tension) | Single or double | Pulling rather than pressing — bearing/shaft extraction |
Tonnage ratings: 5T / 10T / 20T / 30T / 50T / 100T common workshop tonnages. Match to peak force + 25% safety margin. Pressure rating: standard hand pumps deliver 700 bar (10,000 psi) — match ram + pump pressure spec. Critical: hydraulic hoses + couplings must match pressure rating; quick-couplers must seat fully — partial coupling = catastrophic blowout. Companion: hydraulic oil, hydraulics, bearing pullers, hydraulic oil guide.
Hydraulic Rams and Hydraulic Tools
Hydraulic rams and tools use the mechanical advantage of hydraulic pressure to apply very large forces in a compact package — far exceeding what is achievable with mechanical tools alone. Applications include pressing and pulling bearings and bushings, straightening and forming structural components, lifting and positioning heavy machinery, splitting logs, and bending pipe and tube. AIMS stocks hydraulic rams, cylinders, hand pumps, and integrated tool sets from leading high-force tool brands for industrial maintenance, fabrication, and engineering applications.
Hydraulic Cylinders and Rams
Hydraulic cylinders are the force-generating element of a hydraulic tool system, converting hydraulic fluid pressure from a pump into linear mechanical force. Single-acting cylinders extend under pump pressure and retract under spring or gravity load — they are the most common type for pressing and lifting applications. Double-acting cylinders extend and retract under hydraulic pressure, providing controlled force in both directions for forming, straightening, and positioning applications where controlled retraction force is important. Cylinder capacities range from a few tonnes for light workshop use up to several hundred tonnes for heavy structural and industrial applications. Stroke length and collapsed height are critical parameters when selecting a cylinder for a confined installation.
Hydraulic Hand Pumps
Hydraulic hand pumps provide the pressure source for portable hydraulic tool sets and are available in single-speed and two-speed configurations. Single-speed pumps advance the cylinder at a constant rate per stroke. Two-speed pumps include a high-speed low-pressure mode for rapid advance and automatically switch to high-pressure low-speed mode when the cylinder meets resistance, which is more efficient for most pressing and pulling operations. Air-driven hydraulic pumps are available for high-cycle applications where hand-pumping would be fatiguing. Always match the pump's maximum pressure rating and oil capacity to the cylinder being used.
Bearing Puller and Press Sets
Integrated hydraulic bearing puller and press sets combine a hydraulic cylinder with a range of adaptors, claws, and support plates to handle a wide variety of bearing, bushing, and gear pulling and pressing operations. A quality hydraulic puller set eliminates the need for improvised and potentially dangerous pulling methods and significantly reduces the time required for bearing replacement in heavy equipment maintenance. Sets rated from 10 to 50 tonnes cover the majority of maintenance applications in workshops servicing mobile plant, agricultural machinery, and industrial equipment.
For product selection or to discuss specific force and stroke requirements, contact our team.
AIMS stocks Enerpac and Hi-Force hydraulic tool sets for immediate dispatch across Australia. For specific tonnage requirements, unusual stroke lengths, or cylinder and pump set configurations, contact our team.
Australian industries that drive hydraulic ram demand
Hydraulic rams and cylinders sit at the heavy end of the Australian maintenance toolbox — wherever a job needs more force than a person can apply by spanner, lever or hammer, the hydraulic ram is the answer. The buyer segments in Australia are heavy fleet and rail maintenance workshops (bearing presses, bushing replacement, wheel-set servicing — 20T to 100T workshop rams), mining and resources maintenance (underground bolt removal, ground engagement tool change, dragline component pressing — typically 50T to 100T with hollow centres for shaft removal), agriculture and earthmoving (post pulling, fencing strainers, machinery levelling and component pressing — 10T to 30T portable kits), structural fabrication and shipbuilding (steel straightening, member alignment, jacking heavy assemblies into position — 20T to 50T long-stroke rams), civil construction (jacking precast elements, formwork release, machinery positioning — full kit range), and emergency services and rescue (vehicle extrication and structural stabilisation — 4T to 10T spreader and ram tools).
The decision factors are tonnage (sized for peak force plus a 25% safety margin), stroke length (the actual travel the ram needs to deliver — many users specify too short and find the job can't be completed in a single stroke), action type (single-acting spring return for general pressing, double-acting for controlled retraction and production work, hollow-centre for pulling shafts and broken studs), and pressure rating (700 bar / 10,000 psi is the industrial standard — match ram, hose, coupling and pump pressure ratings at every connection).
Australian standards and safety practice for hydraulic rams
The Australian standards framework around hydraulic tools covers component construction, hose assemblies and workplace safety. AS 2671 covers hydraulic fluid power and the safety requirements that apply to hose assemblies — pressure rating, working pressure, minimum bend radius and end-fitting compatibility. AS 4024 covers safety of machinery generally and is referenced where hydraulic rams are integrated into production equipment. Workplace operation is governed by the Safe Work Australia model WHS Regulations, which require a documented safe work method statement for high-risk tasks including any pressing or lifting operation where personnel are in the load path. The practical safety rules: never stand in the load path of a single-acting spring-return ram (spring failure can release the load suddenly), always use a load-rated pump and hose matched to the ram pressure rating, fully seat quick-couplers before pressurising (a partially coupled fitting can blow off under pressure), and bleed air from new or re-assembled hose runs before applying full pressure.
Hose assemblies must be inspected before each use — kinks, abrasion damage, end-fitting movement and surface bubbling all indicate a hose that should be retired. Hydraulic hose has a manufacturer service life (typically 6 years from manufacture date stamped on the hose) regardless of apparent condition; assemblies in safety-critical applications should be replaced on cycle rather than on visible damage.
Brand depth — what AIMS stocks and supports
AIMS Industrial supplies hydraulic rams and matched pump, hose, coupling and gauge assemblies from manufacturers with proven Australian parts availability. The range covers single-acting spring-return rams from 5T to 100T in standard, low-profile (pancake) and hollow-centre configurations; double-acting twin-port rams for production cells; long-stroke rams for machinery levelling and structural alignment; and complete kits matched to specific application categories (bearing press, master kit, automotive maintenance, structural repair). We deliberately match every ram to a compatible pump, hose set and coupling so the customer doesn't end up with a 700 bar ram driven by a 350 bar pump or with mismatched quick-coupler threads.
Cross-link to companion AIMS hydraulics collections
The hydraulic ram investment connects to broader AIMS hydraulics and bearing tool ranges. Companion ranges: hydraulics for hydraulic fittings, valves, pumps and hose; hydraulic oil for ISO VG 32, 46 and 68 grades matched to ram service conditions; bearing pullers for the mechanical-puller alternative on lighter jobs; lifting equipment for the lift-and-jack ecosystem; hydraulic oil guide for fluid selection background; and bottle jack & hydraulic ram guide for selection guidance across the ram and jack range.
Hydraulic ram questions — answered
How do I size a hydraulic ram for a particular job?
Calculate the peak force the job needs (the press-out force on a stuck bearing, the lift requirement on a piece of plant), then add a 25% safety margin and round up to the next standard tonnage. A common workshop sizing: 10T for light bearing work, 20T for medium pressing, 30T to 50T for heavy bearing and bushing press jobs, 50T to 100T for structural alignment and large component pressing. Always check the stroke length — many users buy enough tonnage but underspec stroke and find they can't complete the job in a single press.
What's the difference between single-acting and double-acting rams?
Single-acting rams extend under pump pressure and retract under spring force (spring-return) or under the load weight (gravity-return). They suit pressing and lifting where the load returns on release. Double-acting rams have two ports — pump pressure extends and retracts the ram under power, giving controlled return and the ability to hold against a pulling load. Double-acting suits production work, controlled jacking and applications where the ram must pull as well as push.
What's a hollow-centre (centre-hole) ram used for?
Hollow-centre rams have a bore through the centre of the ram that lets the operator pull a shaft, bolt or threaded rod through the ram itself. They're used for broken-stud extraction, anchor-bolt tensioning, bearing pulling on long shafts, and threaded-rod testing rigs. The hollow centre also allows the operator to use a stud or threaded rod as the pulling element directly — a much more compact solution than a separate puller and ram setup.
Can I use a workshop air compressor to power a hydraulic ram?
Not directly — hydraulic rams operate at 700 bar (10,000 psi), which is around 100 times the pressure of a typical workshop air compressor. Air-driven hydraulic pumps exist (the pump uses shop air to drive a hydraulic intensifier) and they're the right answer where mains power isn't available but compressed air is. For most workshops a hand pump or 240V electric pump is the standard match.
What pressure rating do hydraulic hoses and couplings need?
Hydraulic hose assemblies for 700 bar ram service must be rated for the full pressure with a typical 4:1 safety factor (so a hose rated at 700 bar working pressure has a 2,800 bar burst pressure). Quick-couplers must match thread spec and pressure rating exactly — never mix coupler series (CEJN, Hansen, Stucchi etc.) within a single hose run. A mismatched coupler that physically threads but doesn't seal under pressure is the most common cause of hose-blowout injuries in workshop hydraulic work.
How often should hydraulic hose assemblies be replaced?
Hydraulic hose has a manufacturer service life of typically 6 years from the date stamped on the hose, regardless of apparent condition. Hoses used in safety-critical applications (lift jacks, structural rams, anything where a hose failure could drop a load on personnel) should be replaced on cycle. Hoses used in lighter workshop service can be replaced on inspection — retire any hose showing kinks, abrasion through the outer cover, end-fitting movement, or surface bubbling.
For ram sizing guidance, kit selection for specific application categories, or quotes on workshop and field hydraulic tool sets, contact our team.
People Also Ask — Hydraulic Rams and Tools
Q: What's a hydraulic ram?
A hydraulic ram (cylinder) is a piston actuator driven by hydraulic pressure — converts hydraulic fluid pressure into linear mechanical force. Used in workshop tools (porta-power, body shop tools), industrial machinery (presses, lifts, clamps), construction equipment (excavators, dump trucks), and mining/heavy equipment (rock breakers, crushers). Capacity range from small (1-tonne workshop) to massive (1000+ tonne press cylinders). AIMS stocks workshop-spec hydraulic rams and tools. See [Bottle Jack & Hydraulic Ram Guide](/blogs/product-guides/bottle-jack-hydraulic-ram-guide).
Q: Single-acting or double-acting hydraulic ram?
Single-acting: hydraulic pressure pushes the piston out; spring or load returns the piston. Simpler, cheaper, suits one-direction-only force applications (lifting, pressing). Double-acting: hydraulic pressure works in both directions (push and pull). More complex but provides controlled motion in both directions. For workshop pressing, jacking, and lifting: single-acting is workshop standard. For controlled positioning or pull-action applications: double-acting required.
Q: What capacity hydraulic ram do I need?
Match capacity to maximum force × 1.5 safety factor. Workshop common capacities: 5-tonne (light bearing pressing, body work), 10-tonne (medium pressing, vehicle lifting), 20-tonne (heavy pressing, gear pulling), 50-tonne (heavy industrial). Capacity is the FORCE rating, not the weight you're lifting — for jacking a vehicle, the ram only needs to lift one wheel's worth of weight (vehicle weight × 0.3 typical).
Q: Porta-power vs bottle jack?
Porta-power: hydraulic ram with separate hand pump and assorted adapters/extensions — versatile, used for body shop pulling, bending, pressing. Standard workshop body repair tool. Bottle jack: hydraulic lifting jack with integral pump and platform — used primarily for vehicle lifting and straight lifting applications. For workshop pressing and pulling work: porta-power. For vehicle lifting: bottle jack. Different tools for different jobs — most workshops have both.
Q: How do I service a hydraulic ram?
Annual inspection: check for fluid leaks, piston rod damage, mounting integrity. Replace hydraulic oil every 2-5 years depending on duty cycle (degraded oil damages internal seals). Replace seals at first sign of leakage. Use the correct hydraulic oil grade — typically ISO VG 32 or 46 for workshop hydraulics; check the equipment manual. Don't substitute motor oil or ATF for hydraulic oil — wrong oil damages seals and pump components. AIMS supplies hydraulic oils for service.