SXSZ Screw Gearbox

Dedicated screw-drive gearbox for plasticizing screw transmission, injection molding machines, extrusion-related equipment, and screw gearbox replacement.

Key Range

Technical Datasheets

Item	Data
Product name	SXSZ Screw Gearbox
Product type	Dedicated screw-drive gearbox
Main application	Injection molding machine plasticizing screw drive
Product direction	Plasticizing screw transmission and screw gearbox replacement
Model directions	SXSZ3000 / SXSZ4800 / SXSZ6000
Efficiency direction	More than 95%, confirm by selected datasheet
Rated torque	Confirm by selected model and screw load
Rated speed	Confirm by selected model and required screw speed
Ratio range	Confirm by input speed and required screw speed
Input forms	Motor input, coupling input, shaft input, project-specific input
Output forms	Screw interface, shaft, spline, keyway, coupling, thrust-bearing arrangement
Mounting forms	Base-mounted, flange-mounted, machine-specific mounting
Critical review	Screw torque, axial thrust, bearing load, screw back pressure, lubrication, cooling, thermal condition
Best fit	Plasticizing screw drives, injection molding machines, single-screw plastic processing equipment, rubber and plastic auxiliary machinery, dedicated screw transmission, and screw gearbox replacement

Model Direction	Public Handling	Required Confirmation
SXSZ3000	Treat as model / size direction under SXSZ	Torque, screw speed, ratio, shaft, screw interface, bearing load, drawing
SXSZ4800	Treat as model / size direction under SXSZ	Torque, screw speed, ratio, shaft, screw interface, bearing load, drawing
SXSZ6000	Treat as model / size direction under SXSZ	Torque, screw speed, ratio, shaft, screw interface, bearing load, drawing
Replacement model	Treat as engineering confirmation case	Nameplate, existing drawing, screw data, mounting data
New machine design	Treat as project selection case	Screw diameter, screw speed, torque, axial thrust, motor data
Custom screw interface	Treat as OEM design case	Shaft, spline, keyway, thrust seat, coupling method, installation space

What is SXSZ Screw Gearbox used for?

SXSZ Screw Gearbox is used for plasticizing screw drive and screw transmission equipment, especially injection molding machine screw-drive applications where torque, screw speed, axial load, and screw interface must be reviewed together.

Is SXSZ a general industrial gearbox?

No. SXSZ is a dedicated screw-drive gearbox direction. SI Industrial Gearbox is the broader heavy-duty helical / bevel-helical industrial gearbox path.

Are SXSZ3000, SXSZ4800 and SXSZ6000 separate products?

They should be handled as model or size directions under the SXSZ Screw Gearbox family. Do not publish separate fixed-parameter pages until each model has its own confirmed datasheet and drawing.

Why is axial load important for screw gearboxes?

Plasticizing and extrusion-related screw drives can generate axial force from screw back pressure and process load. The gearbox must be reviewed for thrust-bearing arrangement, output shaft support, lubrication, and bearing life.

Can SXSZ replace an existing screw gearbox?

SXSZ can be reviewed for replacement when the existing nameplate, screw interface drawing, shaft dimensions, mounting dimensions, motor data, and machine photos are available.

What information is needed before quotation?

Send application equipment, screw diameter, screw speed, input power, input speed, ratio, output torque, axial thrust, screw interface, mounting form, duty cycle, lubrication condition, and existing drawings or nameplate.

Can Starshine provide drawings and CAD files?

2D drawings and 3D CAD files can be requested after SXSZ model direction, ratio, input form, screw interface, mounting position, axial-load review, and thermal review are confirmed.