SPC Industrial Planetary Gearbox

Heavy-duty planetary gearbox for high-torque industrial drives, shock-load machinery, low-speed output, and project gearbox replacement.

Key Range

Download documents

Technical Datasheets

Item	Data
Product name	SPC Industrial Planetary Gearbox
Product type	Heavy-duty industrial planetary gearbox
Transmission layout	Planetary gear transmission
Conservative size range	SPC 9–20
Larger catalogue size line	SPC 9–36, verification required
Ratio range	25–4,000
Conservative visible torque range	22,000–354,000 N·m
Larger catalogue torque line	Up to 2,600,000 N·m, factory confirmation required
Efficiency reference	97–98%
Housing material	Ductile iron
Gear material direction	Alloy steel, carburizing, quenching, precision grinding
Ring gear direction	Surface hardening
Planet carrier direction	Cast steel or ductile iron
Input forms	Motor adapter, shaft input, hydraulic motor interface, coupling input, project-specific input
Output forms	Solid shaft, hollow shaft, shrink disc, splined shaft, flange, project-specific output
Mounting forms	Foot, flange, vertical, horizontal, torque-arm, or project-specific arrangement
Best fit	Heavy conveyors, mining equipment, mixers, agitators, rotary equipment, kiln-related drive systems, screw-drive machinery, lifting and transportation systems, and heavy-duty gearbox replacement

Range / Clue	Public Handling	Selection Direction
SPC 9–20	Use as the conservative public size range	Standard heavy-duty SPC selection direction
SPC 9–36	Verification required	Larger catalogue size line; confirm with factory before publishing fixed data
22,000–354,000 N·m	Use as conservative visible torque range	Suitable for public page and first-stage selection
Up to 2,600,000 N·m	Factory confirmation required	Use only for large project inquiry or confirmed catalogue data
XGP600	Project or model clue	Confirm by drawing, nameplate, ratio, torque, shaft, and mounting
Replacement model code	Not enough by itself	Confirm old gearbox data before quoting

Is SPC a precision servo planetary gearbox?

No. SPC is an industrial planetary gearbox for heavy-duty torque transmission. Precision servo planetary gearboxes are usually selected for backlash, positioning accuracy, and compact servo matching. SPC should be selected by torque, ratio, load, service factor, mounting, and thermal condition.

What is the main advantage of an industrial planetary gearbox?

The planetary structure distributes load through multiple planet gears. This supports high torque density, compact gearbox size, high ratio capability, and heavy-duty load transmission.

Can SPC be used for shock-load applications?

Yes, SPC can be reviewed for shock-load and impact-load applications. Service factor, peak torque, starts per hour, reversing duty, bearing load, and thermal condition should be checked before final model selection.

Can SPC replace an existing industrial gearbox?

SPC can be reviewed for replacement projects when the existing nameplate, ratio, output torque, shaft dimensions, mounting dimensions, input arrangement, and installation photos are available.

What is the difference between SPC and SI Industrial Gearbox?

SPC uses an industrial planetary transmission structure. SI Industrial Gearbox is used for heavy-duty helical or bevel-helical gearbox requirements. The correct choice depends on torque, ratio, shaft layout, mounting, thermal condition, and application load.

What is the difference between SPC and Cycloidal Gear Reducer?

SPC is a heavy-duty industrial planetary gearbox. Cycloidal Gear Reducer is a compact coaxial cycloidal reducer for high ratio, shock load, and frequent start-stop duty in a different torque and structure direction.

What information is needed before quotation?

Send application name, input power, input speed, output speed, ratio, required output torque, peak load, mounting form, shaft form, duty cycle, working environment, and existing drawing or nameplate.

Can Starshine provide drawings and CAD files?

2D drawings and 3D CAD files can be requested after SPC size, ratio, input form, output shaft, mounting position, service factor, and thermal review are confirmed.