CAT 637 Open Bowl Scraper
Information
Additional information
| Make | |
|---|---|
| Model | 637, 637G, 637K |
| Weight | 52 t |
| Class | Twin Powered |
Equipment Overview
The CAT 637 is a twin-powered open bowl wheel tractor-scraper engineered for high-production bulk earthmoving, sitting above the 627 in Caterpillar’s open bowl range with an optional push-pull arrangement for tougher loading conditions. It has a heaped capacity of 26 cubic metres and an empty operating weight of around 52 tonnes, suited to major infrastructure projects, mine overburden removal, large dam and reservoir construction, and long-haul cut-to-fill work on large-scale developments.
A Cat C18 engine drives the tractor at 425 kW (570 hp), while a Cat C9.3 ACERT engine drives the scraper at 215 kW (289 hp); both meet emission levels equivalent to U.S. EPA Tier 2/EU Stage II. The tractor runs an eight-speed planetary powershift transmission and the scraper a four-speed torque-converter drive, so both axles are independently powered, and the optional push-pull hitch lets two 637s load each other without a dedicated pusher dozer.
Technical Specifications
| Specification | Value |
|---|---|
| Engine (Tractor) | Cat C18 |
| Engine (Scraper) | Cat C9.3 ACERT |
| Power Output | 425 kW (570 hp) tractor / 215 kW (289 hp) scraper |
| Max Torque | NA |
| Emission Standard | Equivalent to U.S. EPA Tier 2/EU Stage II (both engines) |
| Transmission | Tractor: 8-speed planetary power shift, APECS. Scraper: 4-speed torque converter drive, planetary powershift |
| Drive Type | Twin-powered; tractor and scraper axles independently driven; optional push-pull arrangement |
| Operating Weight (Empty, non push-pull) | 52,140 kg |
| Rated Load | 37,200 kg |
| Scraper Capacity – Heaped | 26 m³ |
| Scraper Capacity – Struck | 18.3 m³ |
| Cutting Width | 3.51 m |
| Maximum Depth of Cut | 450 mm |
| Maximum Depth of Spread | 535 mm |
| Fuel Tank Capacity | 1,400 L |
Dimensions
| Dimension | Value |
|---|---|
| Length (Standard, Non Push-Pull) | 15,164 mm |
| Width | 3,937 mm |
| Height (Overall Shipping) | 4,145 mm |
| Height (Top of Cab) | 3,805 mm |
| Wheelbase | 8,808 mm |
| 180° Curb-to-Curb Turning Width | 12.23 m |
Typical Applications
- High-production bulk earthmoving on major infrastructure projects
- Mine site overburden removal
- Large dam and reservoir construction
- Airport and highway corridor earthworks
- Long-haul cut-to-fill on large-scale developments
