JSC45
Two-stage planetary18,500–43,400N·m rated output torque
- Max. output torque
- Up to 44,000 N·m
- Output speed
- 0–15 r/min
- Total displacement
- 7162.5–21,028 ml/r
- Working pressure
- 13–22 MPa
- Matching motors
- JHM3, JHM6, JNM1, JNM2, JNM3
01Output shaft
02Mounting flange
03Distributor
Typical JSC configuration shown. Actual construction is per the approved drawing.
Hydraulic transmission unit · Mainly custom-built
JSC Series
Hydraulic Transmission Unit
Made up of a hydraulic motor, planetary gearbox, multi-disc brake and a choice of functional distributors. The output shaft carries high radial and axial loads, with high transmission efficiency and good stability at low speed. Ratio, output type and mounting interface can be customized to the machine.
- Catalog models
- 39models
- Rated output torque
- 1,000–300,000N·m
- Planetary stages
- 1–3stages
39 catalog models with rated torque 1,000–44,550 N·m; the multi-stage high-torque series JSC45–JSC79 reaches 300,000 N·m rated torque (310,000 N·m maximum output torque). Output shafts are available with parallel key, threaded flange, straight-sided external spline or internal spline; other ratios and output types can be customized.
Technical data
JSC Series model data
Use the selection map to locate models by the torque and speed you need, then see the full data for that series in the table below.
Selection map
Each dot is one catalog model
N·m
r/min
Showing all 39 models
Horizontal axis: rated torque (N·m, log scale). Dots are catalog models; dashed bands are the torque ranges of the multi-stage series (models configured to order). For series rated at both 16 and 20 MPa, switch with the "Torque at" setting below.
Click any model on the map to see its data, or enter the torque you need.
Smallest models that qualify
Series
Torque at
Unit
Filtered by selection map
| Model | Total displacement (ml/r) | Rated torque (N·m) | Pressure | Speed (r/min) | Ratio i |
|---|---|---|---|---|---|
| JSC2.5Single-stage · 4 models · 1,000–2,200 N·m | |||||
| JSC2.5-400 | 413 | 1000 | 18 MPa (rated) | 0.2-80 | 7 |
| JSC2.5-600 | 602 | 1500 | 18 MPa (rated) | 0.2-80 | 7 |
| JSC2.5-800 | 805 | 1800 | 16 MPa (rated) | 0.2-80 | 7 |
| JSC2.5-1000 | 955 | 2200 | 18 MPa (rated) | 0.2-80 | 5 |
| JSC3Single-stage · 4 models · 3,000–7,000 N·m | |||||
| JSC3-1000 | 1078 | 3000 | 20 MPa (rated) | 0.2-80 | 7 |
| JSC3-1500 | 1570 | 4500 | 20 MPa (rated) | 0.2-80 | 5 |
| JSC3-2300 | 2337.5 | 6500 | 20 MPa (rated) | 0.2-80 | 5.5 |
| JSC3-3500 | 3426.5 | 7000 | 15.5 MPa (rated) | 0.2-80 | 5.5 |
| JSC4Single-stage · 6 models · 5,266–11,387 N·m | |||||
| JSC4-2500 | 2455 | 5266 | 16 MPa | 0~80 | 5 |
| JSC4-3000 | 2970 | 6390 | 16 MPa | 0~80 | 5 |
| JSC4-3500 | 3415 | 7348 | 16 MPa | 0~80 | 5 |
| JSC4-3850 | 3757 | 8083 | 16 MPa | 0~70 | 5.5 |
| JSC4-4125 | 4147 | 8712 | 16 MPa | 0~70 | 5.5 |
| JSC4-4400 | 4416 | 9109 | 16 MPa | 0~70 | 5.5 |
| JSC5Single-stage · 6 models · 10,609–24,255 N·m | |||||
| JSC5-5000 | 4905 | 10609 | 16 MPa | 0~50 | 5 |
| JSC5-5500 | 5520 | 12010 | 16 MPa | 0~50 | 5 |
| JSC5-6500 | 6505 | 13860 | 16 MPa | 0~50 | 5 |
| JSC5-7700 | 7728 | 16813 | 16 MPa | 0~50 | 7 |
| JSC5-8400 | 8638 | 17700 | 16 MPa | 0~50 | 7 |
| JSC5-9100 | 9107 | 19404 | 16 MPa | 0~50 | 7 |
| JSC6Single-stage · 4 models · 21,708–44,550 N·m | |||||
| JSC6-10000 | 10170 | 21708 | 16 MPa | 0~40 | 5 |
| JSC6-12500 | 12468 | 28527 | 16 MPa | 0~40 | 5.5 |
| JSC6-15000 | 15315 | 32400 | 16 MPa | 0~40 | 5 |
| JSC6-17000 | 16847 | 35640 | 16 MPa | 0~40 | 5.5 |
| JSC2.5 3Two-stage · 6 models · 2,700–10,700 N·m | |||||
| JSC2.5 3-1200 | 1184 | 2700 | 16 MPa | 0~35 | 16 |
| JSC2.5 3-2300 | 2300 | 5100 | 16 MPa | 0~33 | 20 |
| JSC2.5 3-3600 | 3612 | 8000 | 16 MPa | 0~30 | 28 |
| JSC2.5 3-3800 | 3820 | 8500 | 16 MPa | 0~30 | 20 |
| JSC2.5 3-3000 | 3020 | 6700 | 16 MPa | 0~32 | 20 |
| JSC2.5 3-3300 | 3320 | 7400 | 16 MPa | 0~32 | 20 |
| JSC3 4Two-stage · 4 models · 8,638–17,600 N·m | |||||
| JSC3 4-4300 | 4312 | 8638 | 16 MPa | 0~10 | 28 |
| JSC3 4-5600 | 5628 | 11275 | 16 MPa | 0~10 | 28 |
| JSC3 4-6800 | 6804 | 13630 | 16 MPa | 0~10 | 28 |
| JSC3 4-8800 | 8792 | 17600 | 16 MPa | 0~10 | 28 |
| JSC4 5Two-stage · 5 models · 10,689–31,000 N·m | |||||
| JSC4 5-5000 | 5080 | 10689 | 16 MPa | 0~31 | 20 |
| JSC4 5-6800 | 6800 | 13312 | 16 MPa | 0~25 | 20 |
| JSC4 5-8500 | 8512 | 17031 | 16 MPa | 0~17 | 28 |
| JSC4 5-12000 | 11900 | 21384 | 16 MPa | 0~14 | 28 |
| JSC4 5-13800 | 13804 | 25000 | 16 MPa | 0~12 | 28 |
No matching models. Tell us the torque, speed and mounting interface you need and ask about a custom build.
Showing 4 of 39 models
Click a model to see its full data. Converted values; the metric values govern.
Ratings: rated torque is the actual output torque at the listed system pressure, allowing for transmission efficiency. For JSC2.5 and JSC3 the "max. torque" corresponds to the maximum pressure of 25 MPa. Total displacement = hydraulic motor displacement × ratio. Please confirm continuous and short-term peak duty, permissible radial/axial loads and service life with us for your application.
Model code
What each part of the model code means
Example: JSC3-1000CD31H
JSC3-1000CD31H
- 3Planetary gear module; two numbers mean a two-stage combination, e.g. JSC2.5 3 combines C2.5 and C3
- 1000Total displacement of the transmission unit (ml/rev)
- COutput shaft type: B parallel key, C threaded flange, F straight-sided spline, I internal spline
- ZWith brake; omitted without brake
- D31Hydraulic motor distributor type
- HSystem pressure class: H = 20 MPa, omitted = 16 MPa
- Total displacement is the motor displacement multiplied by the reduction ratio; transmission efficiency is the product of the mechanical efficiencies of the hydraulic motor and the planetary gearbox.
- All units can rotate in both directions, as shown on the drawing; if you need the opposite direction to that shown, please state it when ordering.
- The unit can be mounted in any orientation. Fill the motor with hydraulic oil before operation, and position the drain port so that the housing stays full of oil while running.
- The distributor inlet/outlet ports can be rotated in 72° steps to suit the mounting position, without damaging the face O-ring seal.
Multi-stage high-torque series
Rated torque up to 300,000 N·m
Two- or three-stage planetary combinations for higher torque at lower speed. Model, ratio and motor are configured to the torque, speed and mounting conditions.
JSC56
Two-stage planetary42,000–70,000N·m rated output torque
- Max. output torque
- Up to 75,000 N·m
- Output speed
- 0.2–8 r/min
- Total displacement
- 21,344–36,400 ml/r
- Working pressure
- 15–20 MPa
- Matching motors
- JHM6, JHM8, JHM11, JNM4
JSC67
Two-stage planetary80,000–117,000N·m rated output torque
- Max. output torque
- Up to 130,000 N·m
- Output speed
- 0–9 r/min
- Total displacement
- 43,500–61,625 ml/r
- Working pressure
- 14–20 MPa
- Matching motors
- JHM11, JHM16, JNM2, JNM4, JNM5
JSC68
Two- or three-stage planetary120,000–180,000N·m rated output torque
- Max. output torque
- Up to 220,000 N·m
- Output speed
- 0–10 r/min
- Total displacement
- 58,057–93,072 ml/r
- Working pressure
- 15–20 MPa
- Matching motors
- JHM16, JHM31, JNM2
JSC79
Two- or three-stage planetary190,000–300,000N·m rated output torque
- Max. output torque
- Up to 310,000 N·m
- Output speed
- 0–2.2 r/min
- Total displacement
- 90,000–148,475 ml/r
- Working pressure
- 14–20 MPa
- Matching motors
- JHM11, JHM31, JNM3, JNM4
Rated output torque up to 300,000 N·m; maximum output torque up to 310,000 N·m (for the configuration rated at 252,000 N·m). These configurations also apply to the JSH slewing drive (with an output pinion fitted to the JSC output). Outline and mounting dimensions are supplied for each configuration.
Custom builds
Mainly custom-built, designed around your machine
The catalog models are a starting point for selection. Each item below can be designed to the torque, speed and mounting conditions of your equipment.
Reduction & torque
- Number of planetary stages and ratio
- Output torque and output speed
- Continuous torque, peak and shock loads
Motor, brake & valves
- JNM / JHM hydraulic motor selection
- Multi-disc brake
- Distributor, counterbalance and relief valves
Mounting & interfaces
- Output shaft type and mounting flange
- Port layout and drain port position
- Dimensional match to imported transmission units
Typical applications
Common application areas; the solution is confirmed for each machine's duty.
- Winch drivesHydraulic winches for construction, marine, mining and industrial hauling
- Track & wheel drivesMobile machinery, crawler chassis, drilling rigs and special vehicles
- Slewing & rotary drivesCranes, turntables, drilling equipment and indexing mechanisms
- Industrial hydraulic drivesConveying, mixing, rolling and other low-speed, high-torque equipment
- Replacement of imported unitsReplacement designs matched to mounting dimensions and hydraulic data
Related products
Matching motors and related drives
The JSC Series uses JNM and JHM hydraulic motors; for slewing and winch applications, see the JSH slewing drive and the JSJ hydraulic winch.
Selection support
Tell us your duty,
we'll confirm the right transmission configuration.
Send the information in the checklist and we will check it against the catalog models or assess a custom design. The product catalog and installation drawing are provided once the series and mounting interface are confirmed.
Please include
- 01Required output torque (continuous and peak) and output speed
- 02System pressure, flow and duty cycle
- 03Output shaft type (B / C / F / I), mounting flange and available space
- 04Whether a brake or valve functions are needed, or your current imported model