Wittenstein LP120S-MF2-70-1I1-3S – LP+ 120 Two-Stage Planetary Gearbox, Ratio 70:1
The Wittenstein LP120S-MF2-70-1I1-3S is a two-stage planetary gearbox from the WITTENSTEIN alpha LP+ range (alpha Basic Line), size 120. It has a high 70:1 reduction ratio, 220 Nm maximum acceleration torque and a 32 mm clamping hub for direct servo motor mounting. It is lubricated for life.
The LP+ is WITTENSTEIN’s economical servo gearbox. Size 120 is suited to heavier axes that need high output torque at low speed, where cost matters more than very low backlash.
What the Part Number Means
- LP – WITTENSTEIN alpha LP+ planetary gearbox (alpha Basic Line)
- 120 – Gearbox size 120
- S – Standard version
- MF – Motor-mounted, standard version
- 2 – Two-stage
- 70 – Ratio i = 70
- 1 – Standard backlash
- I – Clamping hub bore Ø 32 mm
- 1-3S – Output and design options
Key Features
- Economical servo gearbox: alpha Basic Line, size 120
- Ratio 70:1, two stages: high output torque at low speed
- Torque: max. acceleration torque 220 Nm, nominal output torque 110 Nm
- Efficiency: 95% (2-stage)
- Clamping hub: Ø 32 mm, for larger servo motors
- Lubrication: lubricated for life
- Degree of protection: IP64
Key Specifications (WITTENSTEIN alpha LP+ 120, 2-stage, i = 70)
Torque and Speed
- Ratio: i = 70
- Max. acceleration torque T2B: 220 Nm
- Nominal output torque T2N: 110 Nm
- Emergency stop torque T2Not: 480 Nm
- Nominal input speed n1N: 2,600 min⁻¹
- Max. input speed n1Max: 4,800 min⁻¹
- Mean no-load running torque T012: 0.4 Nm
Precision and Mechanics
- Max. torsional backlash: ≤ 15 arcmin (standard, 2-stage)
- Torsional rigidity: 25 Nm/arcmin
- Max. axial force F2AMax: 4,000 N
- Max. radial force F2RMax: 4,600 N
- Efficiency at full load: 95%
- Service life: > 20,000 h
General Data
- Clamping hub bore: Ø 32 mm (code I)
- Weight: approx. 11.0 kg (incl. standard adapter plate)
- Lubrication: lubricated for life
- Degree of protection: IP64
Typical Applications
- Heavy, low-speed axes in packaging and handling machines
- Conveyors, rotary tables and lifting axes
- Cost-sensitive automation with larger servo motors
- Direct replacement of LP120S-MF2-70-1I1-3S gearboxes in existing machines
Buy the Wittenstein LP120S-MF2-70-1I1-3S from Atlantech Drives
Atlantech Drives supplies the Wittenstein LP120S-MF2-70-1I1-3S with fast worldwide shipping and a 12-month warranty. Our experienced sales team can also quote other WITTENSTEIN alpha LP+, NP, CP, SP+ and TP+ gearboxes. Request a quote today for price and availability.
More Wittenstein Products
- Wittenstein LP090S-MF2-25-1G1-3S (lp090smf2251g13s)
- Wittenstein LP090S-MF1-10-1G1-3S (lp090smf1101g13s)
- Wittenstein SP140S-MF2-28-0K1-2S
- All Wittenstein products
Manufacturer website: WITTENSTEIN
Keyword Synonyms
- LP120S-MF2-70-1I1-3S / LP 120S-MF2-70-1I1-3S / LP120SMF2701I13S
- Wittenstein LP+ 120 gearbox ratio 70
- Wittenstein alpha LP 120 planetary gearbox 70:1
- Wittenstein LP+ 120 two-stage gearhead, 32 mm clamping hub
- WITTENSTEIN alpha Basic Line servo gearbox size 120
- Wittenstein economical planetary gear reducer 70:1
- Wittenstein Planetengetriebe LP120S-MF2-70-1I1-3S / Servogetriebe LP+ 120 i=70
