Industrial Motor Graders for Heavy Earthmoving and Road Construction
CNMAC supplies 15-ton to 17-ton heavy-duty motor graders engineered for road subgrade finishing, precision leveling, ditching, and haul road maintenance. Built on high-torque turbocharged diesel engines, heavy-duty planetary power shift transmissions, and rigid A-frame drawbar structures, these units deliver consistent blade traction and contour precision under abrasive soil conditions.
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Small Motor Grader● 15T Motor Grader | PY165C
● Engine Model: CUMMINS6BTA5.9
● Gross Power: 125kW @ 2300rpm
● Operating Weight: 15000kg -
Construction Motor Grader● 16T Motor Grader | PY180C
● Engine Model: CUMMINS 6BTA5.9
● Rated Power; 132kW @ 2300rpm
● Operating Weight: 16000kg -
Road Construction Grader● 16.9T Motor Grader | PY220C
● Engine Model: CUMMINS6CTA8.3
● Rated Power: 160kW @ 2200rpm
● Operating Weight: 16900kg
Motor Grader Product Lineup
|
Grader Category |
Operating Weight |
Engine |
Primary Applications |
|
Small-to-Medium Utility Grader |
15,000 kg |
Cummins 6BTA5.9 (125 kW / 168 hp @ 2300 rpm) |
Rural road construction, trench backfilling, site preparation, municipal maintenance |
|
Construction and Earthmoving Grader |
16,000 kg |
Cummins 6BTA5.9 (132 kW / 177 hp @ 2300 rpm) |
Main road sub-base grading, industrial yard leveling, medium-scale infrastructure projects |
|
Heavy Infrastructure Grader |
16,900 kg |
Cummins 6CTA8.3 (160 kW / 214 hp @ 2200 rpm) |
Mining haul road maintenance, highway construction, heavy-duty ripping operations |
Technical Specifications
|
Parameter |
PY165C (15T) |
PY180C (16T) |
PY220C (17T) |
|
Operating Weight |
15,000 kg |
16,000 kg |
16,900 kg |
|
Engine Model |
Cummins 6BTA5.9 |
Cummins 6BTA5.9 |
Cummins 6CTA8.3 |
|
Rated Power Output |
125 kW @ 2300 rpm |
132 kW @ 2300 rpm |
160 kW @ 2200 rpm |
|
Max Torque Output |
710 Nm |
750 Nm |
980 Nm |
|
Transmission Type |
Electro-hydraulic Power Shift |
Electro-hydraulic Power Shift |
Electro-hydraulic Power Shift |
|
Gears (Forward / Reverse) |
6 FWD / 3 REV |
6 FWD / 3 REV |
6 FWD / 3 REV |
|
Max Travel Speed (FWD) |
38 km/h |
38 km/h |
40 km/h |
|
Max Tractive Force |
77 kN |
82 kN |
87 kN |
|
Moldboard Length x Height |
3,660 x 610 mm |
3,660 x 610 mm |
4,270 x 610 mm |
|
Moldboard Rotation Angle |
360 degrees |
360 degrees |
360 degrees |
|
Max Bank Cutting Angle |
90 degrees |
90 degrees |
90 degrees |
|
Max Blade Ground Clearance |
450 mm |
450 mm |
460 mm |
|
Max Cutting Depth |
500 mm |
500 mm |
500 mm |
|
Rear Ripper Shanks (Optional) |
3 or 5 Shanks |
3 or 5 Shanks |
3 or 5 Shanks |
|
Hydraulic System Pressure |
18 MPa |
18 MPa |
20 MPa |
|
Overall Dimensions (L x W x H) |
8,900 x 2,600 x 3,400 mm |
8,900 x 2,600 x 3,400 mm |
9,300 x 2,600 x 3,400 mm |
Machine Applications
Highway and Subgrade Preparation
Spreading aggregates, cutting road crowns, and shaping drainage ditches to precise cross-slope angles.
Mining and Haul Road Upkeep
Clearing loose debris, removing corrugated washboard ruts, and maintaining smooth haul routes for heavy dump trucks.
Commercial Site Development
Leveling sub-bases for logistics hubs, industrial parks, and agricultural field contouring.
Snow Clearing Operations
Mounted with front-plow attachments and side wings for high-speed snow removal on regional roads.
Engine Variants: Regional Tier 2 / Tier 3 / Stage IIIa Cummins engines, with options for cold-start preheaters (-25 deg C operational rating).
Work Attachments:
Front Dozer Blade (2,740 mm width)
Rear Heavy-Duty Ripper (3-tooth or 5-tooth shank assembly)
Mid-Mounted Scarifier (11-tooth) Blade Guidance Alignment: Pre-wired mounting brackets and hydraulic integration ports for 3D GPS/GNSS automated leveling control systems.
Operator Environment: FOPS/ROPS certified enclosed cab with HVAC, air-suspension seating, and digital hydraulic status monitoring.


Structural Integrity: Frame articulation joints and A-frame drawbars undergo robotic MAG welding and ultrasonic flaw detection (UT) on all primary load-bearing welds.
Hydraulic System Cleanliness: Main control valves, steering cylinders, and gear pumps are assembled in cleanroom conditions, followed by 100% high-pressure oil flushing (NAS 1638 Class 8 standard).
Factory Testing: Every machine undergoes a 4-hour continuous load test, including hydraulic relief valve calibration, brake hold testing on 20 deg inclines, and blade angle displacement verification.
International Standards: Certified under ISO 9001 quality management standards; CE compliance documentation available for global export configurations.
Export Logistics and After-Sales Support
Shipping Solutions
Available for RORO (Roll-on/Roll-off), Flat Rack containers, or partially dismantled 40HQ container packing to optimize ocean freight costs.
Spare Parts Availability
Stocked wearing parts (cutting edges, end bits, scarifier teeth, hydraulic filter cartridges) dispatchable within 72 hours via international air express.
Technical Documentation
Shipped with complete English schematic manuals, hydraulic line diagrams, parts books with OEM cross-references, and maintenance schedules.
Warranty Coverage
Standard 12-month or 2,000-operating-hour warranty covering engine block, transmission, drive axles, and hydraulic pumps.
FAQ
China Machinery International Trading Co., Ltd. is one of the most experienced grader manufacturers and suppliers in China. We warmly welcome you to buy cheap grader made in China here from our factory. Quality products and reasonable price are available.
