China factory Swd8 High Drive Bulldozer Cat Tech. Crawler Tractor Bulldozer with Free Design Custom

Product Description

Main Highlight for CZPT SWD8 Bulldozer

Equipped with CZPT engine powerful and reliable,allows the SWD8 to doze through tough material.
Hydro Mechanical Torque Converter, Powershift transmission, Elevated final drive.
Modular design for convenient service.
Original Sealed and Lubricated,Track from ITM. Bogie Suspension Less slippage, better balance, and a smoother ride.
Designed for operator comfort, convenience, and productivity. Machine controls and displays are all at the operator’s fingertips to maximize operator productivity.Torque Divider
A single-stage torque converter with an output torque divider send 70% of engine torque through the converter,30% through a direct drive shaft for greater driveline efficiency and higher torque multiplication.
The torque converter shields the driveline from sudden torque shocks and vibration.
Planetary power shift transmission has 3- speeds forward and 3-speeds reverse and utilizes large diameter, high-capacity, oil- cooled clutches.
Elevated final drives are isolated from ground and implement induced impact loads for extended power train life.

Product Show


Model Cummins
Type Six-cylinder,water-cooled turbocharged,mechanical injection
Rated power 257KW
Rated speed 1900rp
Implement Hydraulic System  
Hydraulic flow rate 220L/min
Hydraulic pressure 21MPa
Pump type Double vane pump
Control valve Hydraulic operated
Under Carriage System  
Sprocket Elevated
Number of track rollers (each side) 8
Number of carrier rollers (each side) (4 single, 4 double)
Number of front idler (each side) 12
Track type Single grouser
Track tension 2083mm
Track pitch 216mm
Track width 560mm
Number of track shoes (each side) 44
Track length on ground 3252mm
Ground clearance 556mm
Main Technical Specification  
Operating weight(without ripper) 33000Kg
Ground pressure(without ripper) 0.093MPa
Grade ability 58%
Overall dimensions (L×W×H,without ripper) 6105×3990×3600mm
Max. tractive force 380KN
Working Equipment  
Blade type Semi-U
Width 3940mm
Height 1690mm
Max. CZPT depth 582mm
Max. lift above ground 1288mm
Tilting angle 12°
Blade capacity 11.2m3
Transmission System  
Gear box Power separating hydraulic mechanical type
Torque converter Torque divider combined
Transmission assembly Integrated bevel gear, multiple stage planetary gear box, speed changing control valve
Final drive Two stage planetary reduction gear mechanism
Gear shifts(Forward/Reverse)Travelling speed(km/h) F3/R3
Forward/Reverse I 3.9/4.8
Forward/Reverse II 6.8/8.4
Forward/Reverse III 10.8/13.9
Service Capacities  
Fuel tank 625L
Implement hydraulic 100L
Engine crankcase 41L
Cooling system 121L
Roller frames (each) 65L
Power train 150L
Pivot shaft compartment 15L
Final drives (each) 15L
Steering clutch Oil-type, free-adjustment, multiple disc, pressed hydraulically
Steering brake Pressed by spring, separated hydraulically,costant meshed type

Assembly Line

Why Choose Us

Standard Length Splined Shafts

Standard Length Splined Shafts are made from Mild Steel and are perfect for most repair jobs, custom machinery building, and many other applications. All stock splined shafts are 2-3/4 inches in length, and full splines are available in any length, with additional materials and working lengths available upon request and quotation. CZPT Manufacturing Company is proud to offer these standard length shafts.

Disc brake mounting interfaces that are splined

There are 2 common disc brake mounting interfaces, splined and center lock. Disc brakes with splined interfaces are more common. They are usually easier to install. The center lock system requires a tool to remove the locking ring on the disc hub. Six-bolt rotors are easier to install and require only 6 bolts. The center lock system is commonly used with performance road bikes.
Post mount disc brakes require a post mount adapter, while flat mount disc brakes do not. Post mount adapters are more common and are used for carbon mountain bikes, while flat mount interfaces are becoming the norm on road and gravel bikes. All disc brake adapters are adjustable for rotor size, though. Road bikes usually use 160mm rotors while mountain bikes use rotors that are 180mm or 200mm.

Disc brake mounting interfaces that are helical splined

A helical splined disc brake mounting interface is designed with a splined connection between the hub and brake disc. This splined connection allows for a relatively large amount of radial and rotational displacement between the disc and hub. A loosely splined interface can cause a rattling noise due to the movement of the disc in relation to the hub.
The splines on the brake disc and hub are connected via an air gap. The air gap helps reduce heat conduction from the brake disc to the hub. The present invention addresses problems of noise, heat, and retraction of brake discs at the release of the brake. It also addresses issues with skewing and dragging. If you’re unsure whether this type of mounting interface is right for you, consult your mechanic.
Disc brake mounting interfaces that are helix-splined may be used in conjunction with other components of a wheel. They are particularly useful in disc brake mounting interfaces for hub-to-hub assemblies. The spacer elements, which are preferably located circumferentially, provide substantially the same function no matter how the brake disc rotates. Preferably, 3 spacer elements are located around the brake disc. Each of these spacer elements has equal clearance between the splines of the brake disc and the hub.
Spacer elements 6 include a helical spring portion 6.1 and extensions in tangential directions that terminate in hooks 6.4. These hooks abut against the brake disc 1 in both directions. The helical spring portion 5.1 and 6.1 have stiffness enough to absorb radial impacts. The spacer elements are arranged around the circumference of the intermeshing zone.
A helical splined disc mount includes a stabilizing element formed as a helical spring. The helical spring extends to the disc’s splines and teeth. The ends of the extension extend in opposite directions, while brackets at each end engage with the disc’s splines and teeth. This stabilizing element is positioned axially over the disc’s width.
Helical splined disc brake mounting interfaces are popular in bicycles and road bicycles. They’re a reliable, durable way to mount your brakes. Splines are widely used in aerospace, and have a higher fatigue life and reliability. The interfaces between the splined disc brake and BB spindle are made from aluminum and acetate.
As the splined hub mounts the disc in a helical fashion, the spring wire and disc 2 will be positioned in close contact. As the spring wire contacts the disc, it creates friction forces that are evenly distributed throughout the disc. This allows for a wide range of axial motion. Disc brake mounting interfaces that are helical splined have higher strength and stiffness than their counterparts.
Disc brake mounting interfaces that are helically splined can have a wide range of splined surfaces. The splined surfaces are the most common type of disc brake mounting interfaces. They are typically made of stainless steel or aluminum and can be used for a variety of applications. However, a splined disc mount will not support a disc with an oversized brake caliper.

China factory Swd8 High Drive Bulldozer Cat Tech. Crawler Tractor Bulldozer   with Free Design CustomChina factory Swd8 High Drive Bulldozer Cat Tech. Crawler Tractor Bulldozer   with Free Design Custom