top of page
企业微信截图_17859017393491.jpg

IN-HOUSE MANUFACTURING & QUALITY ASSURANCE

At SINO PORTAL, we maintain complete control over the production cycle within our specialized facility. From precision gear machining and heat treatment to rigorous CMM inspection and torque testing, our integrated manufacturing and quality control processes ensure that every portal axle system meets strict industrial standards for dimensional accuracy and structural reliability.

Core Manufacturing Processes

Precision gear hobbing process for 4x4 bolt-on portal axles

Precision Turning

Heavy-duty gear cutting for off-road portal gear lifts

Gear Hobbing

High-precision gear grinding for smooth portal axle operation

Gear Grinding

Advanced heat treatment furnace for high-strength portal axle gears

Gear Broaching

Quenching process ensuring durability of 4x4 lift kit components

Heat Treatment

CNC machining center for custom aluminum portal axle housings

CNC Machining

Professional sub-assembly of bolt-on portal gear lift systems

Axle Assembly

Final assembly line for Sino Portal global 4x4 portal axles

Portal Axle Assembly

Quality Control Processes

Bevel gear meshing test for reliable off-road portal axles

Bevel Gear Meshing Test

Helical gear profile measurement for 4x4 portal gear kits

Helical Gear Measurement

Strict CMM dimensional inspection for portal axle housings

CMM Inspection

Material hardness testing for heavy-duty 4x4 chassis lift parts

Hardness Testing

Metallographic analysis ensuring Sino Portal steel quality

Metallographic Analysis

Ultimate tensile strength testing for extreme off-road portal axles

Tensile Testing

Precision runout testing for 4x4 bolt-on portal axle shafts

Runout Testing

High torque capacity testing for SINO PORTAL gear lift systems

Torque Testing

Ready to Engineer Your Next 4x4 Portal Axle Project?

bottom of page