New Design for Cat 630K Series Wheel Tractor-Scrapers Includes Technology that Adds Productivity and Operator Convenience

The Cat 631K WTS, Open Bowl.

The new Cat 630K Series wheel tractor-scrapers—631K and 637K—replace the previous 630G Series and feature a complete design update, including high-pressure steering, engine-over-speed protection, tire-spin reduction, differential-lock-engagement protection, and machine/ground-speed control, plus available systems such as Sequence Assist, Load Assist, Payload Estimator, and Cat Grade Control. Payload capacity of the open-bowl 631K and open-bowl twin-engine 637K is 34 cubic yards (26 m3) and 50 cubic yards (38 m3) for the coal-bowl 637K.

Redesign of 630K Series models also includes a number of features developed for other Cat K Series models: the Advanced Cushion Hitch uses new software to dampen end-of-stroke movement of the load cylinder for a smoother ride; hydraulic-system refinement simplifies the bowl quick-drop function; and draft-arm-overflow guards divert material away from the sides of the bowl.

In addition, a new Auto-Stall system assists in quickly bringing the transmission to operating temperature for faster transitions from torque-convertor drive. New cab interiors feature a redesigned dash, as well as visibility and operator-comfort enhancements. Maintenance improvements include a ground-level-service filter bank, and the 637K’s Fuel Economy Mode adjusts shift points and power distribution for optimum fuel economy.

Engine over-speed protection automatically senses engine-over-speed conditions, based on the rate of acceleration, and applies the compression brake or service brakes with no operator input.

Tire-Spin Reduction automatically controls the slip of the tractor tires.

Differential-Lock-Engagement Protection prevents the operator from engaging the differential lock when damage could occur.

High-Pressure Steering requires significantly less steering effort, resulting in less operator fatigue that helps keep production steady throughout the shift.

Machine-Speed Limiter is used if site conditions require limiting machine speed for long intervals. The operator can select the top speed through the display, or top speed can be set through the Cat Electronic Technician. The system allows the machine to select the gear that works most efficiently for the load on the engine and transmission, typically resulting in a lower engine load factor and lower fuel burn, compared with selecting a top gear that requires the engine to operate at high-idle speeds.

Ground-Speed Control is used when top speed must be limited in short segments of the haul or for intermediate periods of time. The operator can set the desired top speed, and the machine selects the appropriate gear for conditions.

Sequence Assist is an available system that uses cylinder-position sensors to automate bowl functions, eliminating up to 14 manual commands in each cycle segment—load, haul, dump, and return—including control of the cushion hitch, transmission-hold feature, and ejector.

Load Assist, an optional feature, is designed to assist less-experienced operators achieve fast, consistent loads. Based on the speed of the machine, the system automatically adjusts cutting-edge height in order to manage wheel slip and to ensure consistent loading cycles.

Payload Estimator is another available system that calculates machine payload (in tonnes or tons) by measuring bowl-lift-cylinder pressure at the start of the haul segment. The system works most effectively when using Sequence Assist and achieves more than 95 percent accuracy (based on testing), compared with actual scale weights. Payload Estimator is included with the Sequence Assist system.

Cat Grade Control, when selected, “intelligently” controls the loading cycle to ensure that the machine does not cut below grade nor over fill in dump area, thus avoiding excess material movement and rework.

Recent News

Versatile Carmix takes concrete to North Mara Gold Mine in Tanzania
    The gold mine in North Mara is situated in the north-west of Tanzania, at about 100 kilometres east of Lake Victoria and 20 kilometres south of the border with Kenya. The gold mine works an average of 8,000 tonnes of minerals a day and produced 287,188 ounces of gold in 2015. The gold
Workers’ Memorial Day, observed each year on April 28, honors workers killed, injured, or made ill at work. Since 1992, BLS has collected data on both nonfatal work injuries and illnesses that result in days away from work, and fatal work injuries. In 2015, the occupations with the highest number of nonfatal injuries and illnesses
The undercarriage of a machine represents a significant portion of a piece of equipment’s purchase price. Proper maintenance and operation practices are critical for protecting your equipment investment. Undercarriage maintenance is critical to the overall productivity of a machine. It is the mechanism that gives tracked machines much of their power and stability. It also
Deere Adds 8-Year / 20K Hour Warranty on 944K Electric-Drive Components
John Deere is now offering a 96-month / 20,000-hour power electronic components warranty on the Deere 944K hybrid wheel loader. The warranty is retroactive to existing machines in the field and provided on new 944K loaders through October 31, 2018. The warranty includes a 96-month (eight-year) or 20,000-hour (whichever comes first) non-prorated assurance on wheel
  Vermeer’s Silver Series drill rod is composed of S135 common grade steel and is threaded in the same facility as the company’s Firestick drill rod with the same column wall thickness. The Silver Series drill rod is available in four sizes: 1.66-inch, 1.9-inch, 2.06-inch, and 2.375-inch, for use on the D7x11 through the D24x40
CHILE: Construcción regional cae 7,5% y suma dos meses con cifras en rojo
Datos de Cámara Chilena de la Construcción estimaron retroceso de 7,5% en febrero que se suma al -10% de enero. Se busca consolidar esfuerzos público-privados para enmendar el rumbo. Por primera vez desde el año 2002, cuando se comenzó a publicar el Índice de Actividad de la Construcción Regional (INACOR), la Región de Coquimbo inicia

About Us

In Tractopart we supply quality construction Parts and Heavy Equipment Parts with excellent discount rate for New , Used Rebuilt & Surplus parts for excavators, Wheel loader dozers, and undercarriage for all heavy equipment brands, we are locate in Miami, Fl

Contact Info


At Tractopart we focus on providing high quality parts at a great price. Our parts are subjected to rigorous inspection procedures that allow us to ensure product quality.

Phone: 786.219.1010
Main Office: 3505 South Ocean Drive #204
Hollywood, FL 33019