Changge Kowloon / Kowloon Machinery ironworkers and rebar processing machinery

Changge Kowloon / Kowloon Machinery delivers industrial solutions for profile shearing, hole punching, rebar cutting, and cold bending of structural steel across modern fabrication yards.

Changge Kowloon / Kowloon Machinery QA35-12 multi-function ironworker machines

Changge Kowloon / Kowloon Machinery QA35-12 multi-function ironworkers deliver punch and shearing operations for structural steel fabrication. The heavy machine performs hole punching, angle cutting, flat bar shearing, and profile notch work.

Punching rating up to 400 kN delivering maximum hole diameters up to 30 mm
Electric mechanical powertrain motor rated at 4 kW with three-phase 380 V line
Flat metal sheet shearing capacity handling thicknesses up to 12 mm continuously
Ergonomic foot switch pedal control providing responsive single-stroke action

Changge Kowloon / Kowloon Machinery GQ40 rebar and steel bar cutting machines

Changge Kowloon / Kowloon Machinery GQ40 rebar cutting machines provide high-velocity section dividing for building contractors and fabrication yards. A rigid enclosed steel frame protects the multi-stage spur reduction gear from metal grit.

Cutting capacity spanning plain carbon steel bars from 6 mm to 40 mm diameter
Reciprocating blade stroke speed delivering up to 32 dividing strokes per minute
Heavy-duty electric drive motor rated at 3 kW with insulated copper winding coils
Reversible square dividing blades featuring four active wear edges in tool alloy

Changge Kowloon / Kowloon Machinery GQ45 heavy rebar cutting machinery

Changge Kowloon / Kowloon Machinery GQ45 heavy rebar cutting machines are built for dividing high-tensile deformed rebar grades. A fortified forged crankshaft and balanced heavy flywheel store kinetic energy to overcome dense structural steel.

Maximum rebar shearing capacity reaching up to 45 mm bar stock diameter
Electric mechanical powertrain motor rated at 4 kW with forced fan ventilation
High-mass flywheel assembly smoothing impulse torque peaks during metal parting
Adjustable screw gauge positioning bar enabling precise batch length repetition

Changge Kowloon / Kowloon Machinery GW40 rebar bending and forming machines

Changge Kowloon / Kowloon Machinery GW40 rebar bending units perform cold shaping of structural steel bars across civil engineering sites. The rotary bending disk accommodates center pins, forming bushings, and eccentric positioning blocks.

Bending capacity handling round steel stock from 6 mm to 40 mm diameter
Rotary turntable operating speed between 5 and 10 rpm driven via gearbox
Two-point angle adjustment from 0 to 180 degrees using mechanical limit pins
Hardened alloy forming bushings and center mandrels for repeatable shaping

Changge Kowloon / Kowloon Machinery GW40D CNC automated rebar benders

Changge Kowloon / Kowloon Machinery GW40D digital CNC bending machines provide numerical angle control for complex rebar stirrups and hooks. A digital processor programs multiple bend sequences with automatic zero repositioning.

Bending angle positioning repeatability held within 1 degree of set program
Integrated digital CNC panel storing multiple job recipes for routine runs
Automated reverse return of the rotary worktable to home zero upon cycle completion
Dual-pedal foot switch station fitted with quick-access emergency stop button

Changge Kowloon / Kowloon Machinery replacement blades, punches, and dies

Changge Kowloon / Kowloon Machinery replacement tooling includes shear blades for QA35-12 ironworkers, GQ cutting blades, forming dies, and center pins. Tool components are machined from hardened Cr12MoV alloy tooling steels.

Shearing blades for flat steel and profile sections fabricated from Cr12MoV alloy
Round and shaped hole punch pins and matching bottom dies from 10 mm to 32 mm
Bending sleeve bushings and hardened central pins for GW40 and GW50 turntables
Tooling selection verified via part identification codes and blueprint dimensions

Kinematic layout and mechanical torque transmission of Kowloon QA35-12 ironworkers

The powertrain layout of Changge Kowloon / Kowloon Machinery QA35-12 multi-function ironworkers utilizes a 4 kW electric motor connected via v-belts to a heavy balanced flywheel. An eccentric crankshaft transforms the rotary flywheel action into vertical strokes of the shear slide and punching ram.

The high-mass flywheel dampens shock impulses during metal entry, protecting frame integrity and bearing assemblies from sudden cyclic stress. An industrial dog clutch mechanism provides dependable stroke initiation in both single-cycle punching runs and continuous profile cutting operations.

Optimal blade clearance adjustment and profile section shearing geometry

Sheared edge finish across flat steel plates and angle profiles fabricated on Changge Kowloon / Kowloon Machinery tools depends on accurate blade clearance calibration.

Low-carbon structural steels require blade gaps between 5% and 8% of workpiece thickness, while harder alloy steels demand up to 10%. Incorrect clearance causes heavy burrs, edge pulling, or premature tooling chip damage.

Periodic verification of slide alignment with precision feeler gauges maintains clean cut surfaces without workpiece twist.

High-tensile deformed rebar dividing procedures on heavy GQ45 cutting machines

Dividing high-yield reinforcing steel on Changge Kowloon / Kowloon Machinery GQ45 cutting machines requires proper handling of high shear stresses. The machine integrates a drop-forged alloy steel crankshaft and hardened slide blocks directing force to rectangular blades.

An adjustable positioning screw restrains bar rebound during the separation stroke. Bundled cutting of smaller bar sizes is conducted with firm hold-down clamping to prevent blade deflection and preserve tool cutting edges.

Mandrel positioning and mechanical angle stop setup on GW40 turntable benders

Forming structural stirrups, column ties, and anchor hooks on Changge Kowloon / Kowloon Machinery GW40 rotary benders demands correct selection of center mandrels and reaction pins. Mandrel diameters must match project bend radius codes for specific steel grades.

Turntable rotation is bounded by mechanical trip pins that engage limit switches at the target bend angle. Hardened alloy steel forming bushings prevent micro-fracture propagation along the outer tension zone of bent bars.

Digital programming and repetitive precision on GW40D CNC automated benders

Automated Changge Kowloon / Kowloon Machinery GW40D CNC benders incorporate digital angle microprocessors for versatile fabrication recipes. Operators store multiple angle presets via the industrial control interface, enabling automated turntable positioning and dynamic reverse braking.

Angle precision held within 1 degree eliminates manual rework during large-scale rebar cage manufacturing. Following each bend cycle, the turntable automatically returns to zero, reducing operator cycle pauses.

Gearbox lubrication schedule and wear inspection of Kowloon tooling sets

Sustained reliability of heavy Changge Kowloon / Kowloon Machinery hardware requires methodical preventive lubrication. The main reduction gear enclosure operates with high-viscosity industrial gear fluid, checked through an oil sight glass before every operating shift.

Crankshaft bearings, slide guides, and eccentric bushings are lubricated with lithium grease through zerk fittings. Systematic inspection of blades and punching dies ensures timely edge rotation before severe wear degrades workpiece tolerances.

Changge Kowloon / Kowloon Machinery and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Changge Kowloon / Kowloon Machinery and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.