SICMI PSS 70 | 70 t Pressing Force | Fixed Cylinder

SICMI PSS 70 – hydraulic workshop press with 70 t pressing force

The SICMI PSS 70 is a hydraulic workshop press with a double stanchion (H-frame) design, 70 tonnes of pressing force and a 500 mm cylinder stroke for straightening, assembly and dismantling work. The long stroke combined with a work table that locks at three heights covers small bushes and bulky assemblies on the same machine, so you stop rebuilding the set-up between jobs. SICMI has been building hydraulic presses in Sissa Trecasali near Parma since 1983 – made in Italy, with CE compliant two-hand control.

Key benefits

• 500 mm cylinder stroke: considerably more travel than most workshop presses in this class – deep press-fit jobs and tall workpieces without resetting.
• 70 t pressing force with adjustable limit: set the maximum working pressure on the knob and read the actual value on the gauge, so delicate parts get only the force they can take.
• Two speeds: 20 mm/s approach speed for closing the gap, 2 mm/s working speed for controlled pressing.
• Fixed cylinder: force applied centrally, a stiff frame and straightforward operation – the right choice for repeat pressing work.

Equipment & features

Frame and working area

• Double stanchion frame in thick rolled steel, fully welded all round with oversized weld seams – the geometry stays true under full load, year after year.
• Wide front opening, so long and wide workpieces can be loaded from the front.
• Work table raised by a chain driven from the hydraulic cylinder, with three selectable working positions.
• Table locked by thick steel pins, secured against slipping out with cotter pins.
• Hollow work platform, which lets you press material through vertically.
• Clear width between the stanchions 900 mm, clear height in the working area 900 mm.

Hydraulics and controls

• Hydraulic unit with double speed control, 1.5 kW drive power.
• Fixed cylinder, centred in the frame – maximum stiffness in the force path.
• Knob for setting the maximum working pressure, gauge showing the pressure actually applied.
• Sight glass for the oil level in the hydraulic system.
• Three-phase 380 V supply, control voltage stepped down to 24 V by transformer.

Safety

• Two-hand control: lever and pushbutton must be operated simultaneously, as European regulations require for lowering speeds above 10 mm/s.
• Lever logic that prevents mistakes: pushed forward the cylinder rises, pulled towards the operator it lowers – an accidental knock never sends the cylinder down.
• Metal housing around the base of the lever, so it can only be moved with the fingertips.
• Welded metal blocks at the foot of the press keep a safety gap for the operator's feet when the work table comes down.
• Stopflex hose restraint system against hose whip and oil spray.
• Hydraulic hoses and electrical cables anchored to the frame with welded metal clamps.
• Maximum pressure valve in the control unit protects pump and cylinder against overpressure.
• Emergency stop on the cabinet, main switch with LOTO padlock facility for maintenance, cabinet also closed with a key lock.

Applications

• Truck and tractor workshops: axle pins, spring bushes and joints on lorries, trailers and tractors.
• Straightening work: bringing thick plate, round bar and sections back into shape.
• Punching and forming: using your own tooling on the cylinder stem.
• Industrial maintenance: bearings, bushes and couplings on plant components.
• Subcontract work: repeat pressing and assembly jobs with adjustable working pressure.
• Electric motor service: mounting and removing rotors and bearings.

Technical data

Scope of delivery

• SICMI PSS 70 workshop press with double stanchion frame and hydraulic cylinder
• Hydraulic unit with double speed control and maximum pressure valve
• Pressure gauge and oil level indicator
• Control lever with protective housing and pushbutton for two-hand operation
• Work table with lifting chain, steel pins and cotter pins
• 380 V control cabinet with emergency stop, 24 V transformer, LOTO facility and key lock

Optional accessories

• Semiautomatic kit: microswitches for setting the lower and upper stop of the cylinder, including the anti-rotation stem device
• Anti-rotation stem device as a separate item – keeps tooling mounted on the cylinder in line
• Work support plate with mechanical fixing blocks, sized to the tonnage
• Pair of V prisms in painted cast iron, machined at the contact area – for straightening and bending tube, bar and sections