Machine models

Grove CM20 specifications

Entries in this reference
Listing-entry count
1

Short answer

The Grove CM20 is an 185.1-horsepower crawler crane, and Grove lists one version of it. Listed weight is 55,131 lb.

Operational
Specification	CM20
Operating Weight	55,131 lb
Fuel Capacity	65 gal
Hydraulic System Fluid Capacity	77.5 gal
Operating Voltage	24 V

Transmission and speeds
Specification	CM20
Max Speed	5 mph

Undercarriage
Specification	CM20
Width Of Shoes	27.6 in
Number Of Track Rollers Per Side	24

Boom
Specification	CM20
Min Height @ Max Raise Angle	29.9 ft
Max Height @ Max Raise Angle - No Jib	78.1 ft
Max Elevating Angle	78 degrees
Swing Speed	2 rpm

Ratios
Figure	CM20
Engine horsepower per 1,000 lb of weight	3.4
Fuel tank per engine horsepower	0.35 gal

Grove CM20: crawler crane

Grove's listing for the CM20 matches a crawler crane; see the crawler cranes page.

Manitowoc and Grove. Manitowoc's purchase of Grove Worldwide (2002, 271 million dollars) brought Grove's crane lines under Manitowoc Cranes, whose own history began in 1925 when Manitowoc built cranes for the debt-laden Moore Speedcrane Company. Manitowoc Cranes, Wikipedia.
Grove's start. Grove Manufacturing was founded in 1947 by brothers Dwight and John L. Grove and Wayne Nicarry to make farm wagons, and the crane line grew out of a homemade rubber-tired crane. Grove, Tractor & Construction Plant Wiki; Did you know that Grove was founded in 1947?, Paterson Simons.
John Grove. John Grove left after the 1968 Kidde purchase to start Condor Industries, renamed JLG in 1973. Grove, Tractor & Construction Plant Wiki.

CM20: dated market and recall observations — Dated listing search
Date	Listing index	Equipment class	Names queried	Result
2026-09-24	MachineryTrader (machinerytrader.com)	crawler crane	CM20	No matching offers in this snapshot

Dated CPSC search
Date	Database	Names queried	Result
2026-09-24	U.S. Consumer Product Safety Commission	Grove; CM20	No matching recall in the stated search

Sources for this page
Evidence class	Document, classification and recorded date
Reference site	Reference site: Grove CM20 — RitchieSpecs. Observed 2026-09-24.
Published history	Published history Source: Manitowoc Cranes, Wikipedia — Wikipedia. Observed 2026-09-25.
Published history	Published history Source: Grove, Tractor & Construction Plant Wiki — Fandom. Observed 2026-09-25.
Published history	Published history Source: Did you know that Grove was founded in 1947?, Paterson Simons — Patersonsimons. Observed 2026-09-25.
Federal agency data	Federal agency data: Recall database search for Grove — U.S. Consumer Product Safety Commission. Observed 2026-09-24.

CM20

Specification	Source figure
Engine
Number Of Cylinders	6
Engine Make	Cummins
Engine Model	6BTA
Gross Power	185.1 hp
Power Measured @	2,200 rpm
Displacement	360.1 cu in
Max Torque	531.8 lb-ft
Torque Measured @	1,500 rpm
Aspiration	Turbocharged
Operational
Operating Weight	55,131 lb
Fuel Capacity	65 gal
Hydraulic System Fluid Capacity	77.5 gal
Operating Voltage	24 V
Transmission and speeds
Max Speed	5 mph
Undercarriage
Width Of Shoes	27.6 in
Number Of Track Rollers Per Side	24
Boom
Min Height @ Max Raise Angle	29.9 ft
Max Height @ Max Raise Angle - No Jib	78.1 ft
Max Elevating Angle	78 degrees
Swing Speed	2 rpm
Dimensions and weight
Transport Length	35.7 ft
Transport Width	7.9 ft
Transport Height	9 ft
Tail Swing Radius	11.2 ft