Short descriptionThe Simson Compakt with solid piston and spring return is a compact hydraulic jack family offering high working pressure in a low‑weight, sealed design. Models cover capacities from 15.5 t up to 147.5 t (selected models listed up to 615 t equivalent). Working pressure: 825 bar.
Product DescriptionTechnically advanced design for maximum safety and reliability
- High‑strength lifting piston with reinforced corrosion protection for long service life and stable performance.
- Roll‑polished cylinder surface with corrosion protection to minimise friction and ensure efficiency.
- Integrated pump‑side safety valve preset at 825 bar to protect the system against overpressure.
- Robust structural safety margin designed according to applicable standards to prevent overload and breakage.
- Working pressure: 825 bar.
Designed for maximum flexibility and usability- Fully enclosed hydraulic system allows operation in any orientation and under water (closed, water‑resistant construction).
- Maintenance‑free design suited to demanding industrial environments.
- Externally threaded versions available on selected models for mounting or accessory attachment.
- 360° rotatable pump‑handle bracket with two shaft positions and telescopic pump shaft for improved ergonomics and manoeuvrability in confined spaces.
- Optional integrated pressure gauge for accurate pressure reading.
Optional accessories and options- Optional pressure heads (standard flat head supplied). Tilted and extended pressure heads with internal thread available depending on application.
- Unloading knob available as an accessory for mounting on existing unload screws; pump handle to be used when unloading during lifting.
- Spacer kits and other mounting accessories available.
Product list (single-stage hydraulic pump)Header: Model | Stroke length (mm) | Capacity (tonnes (kN)) | Article no | Area (cm²) | Weight (kg) | A (mm) | B (mm) | C (mm) | D Ø (mm) | E (mm) | F (mm) | G (mm) | H Ø (mm) | I (mm) | J Ø (mm)
1530 | 30 | 15.5 (155) | 215601 | 19.63 | 4.3 | 74 | 104 | - | 40 | - | - | 262 | 70 | 127 | 60
1550 | 50 | 15.5 (155) | 215603 | 19.63 | 5 | 101 | 156 | - | 40 | M70x3 | 30 | 262 | 70 | 127 | 60
1575 | 75 | 15.5 (155) | 215605 | 19.63 | 5.6 | 133 | 208 | - | 30 | M70x3 | 45 | 262 | 70 | 127 | 60
3030 | 30 | 30 (300) | 215607 | 38.48 | 6.1 | 81 | 111 | - | 40 | M90x3 | 14 | 288 | 98 | 140 | 60
Product list (two-stage hydraulic pump; two-stage standard from model 3475)Header: Model | Stroke length (mm) | Capacity (tonnes (kN)) | Article no | Area (cm²) | Weight (kg) | A (mm) | B (mm) | C (mm) | D Ø (mm) | E (mm) | F (mm) | G (mm) | H Ø (mm) | I (mm) | J Ø (mm)
1530 | 30 | 15.5 (155) | 215602 | 19.63 | 4.3 | 74 | 104 | - | 40 | - | - | 262 | 70 | 127 | 60
1550 | 50 | 15.5 (155) | 215604 | 19.63 | 5 | 101 | 156 | - | 40 | M70x3 | 30 | 262 | 70 | 127 | 60
1575 | 75 | 15.5 (155) | 215606 | 19.63 | 5.6 | 133 | 208 | - | 30 | M70x3 | 45 | 262 | 70 | 127 | 60
3030 | 30 | 30 (300) | 215608 | 38.48 | 6.1 | 81 | 111 | - | 40 | M90x3 | 14 | 288 | 98 | 140 | 60
3475 | 75 | 34 (340) | 215609 | 44.17 | 11.7 | 131 | 206 | - | 60 | M90x3 | 20 | 326 | 100 | 174 | 98
6255 | 55 | 61.5 (615) | 215610 | 78.54 | 15.9 | 132 | 182 | - | 80 | M120x3 | 20 | 353 | 131 | 186 | 98
15550 | 50 | 147.5 (1475) | 215611 | 188.68 | 41.9 | 134 | 184 | - | 100 | - | - | 436 | 214 | 225 | 98
Technical documentation (listed on page)Spare parts list; measurement tables; user manual; accessories documentation (PDF); manual relief valve assembly instructions; Simson product catalogue.
Technical specifications- Working pressure: 825 bar (safety valve preset at 825 bar).
- Capacity range: approx. 15.5 t up to 147.5 t (selected models equivalent up to 615 t listed in tables).
- Stroke lengths: typically 30, 50, 55, 75 mm depending on model.
- Available as single‑stage and two‑stage pumps; two‑stage becomes standard from model 3475.
- Standard flat pressure head; optional tilted and extended pressure heads with internal thread available.
- Corrosion‑protected, roll‑polished cylinder and high‑strength piston; maintenance‑free closed hydraulic system suitable for underwater use.
- 360° rotatable pump handle bracket with two shaft positions and telescopic pump shaft for ergonomics in confined spaces.
- Unloading knob and spacer kits available as accessories.