Machine models

Grove TM9120 and TMS750B specifications

Entries in this reference
Listing-entry count
2

Short answer

Grove TM9120 and TMS750B: hydraulic truck cranes.

Selected configuration figures
Configuration	Documented field and quantity
TM9120	Gross Power 250 hp Operating Weight 109,500 lb
TMS750B	Gross Power 249.5 hp Operating Weight 77,531 lb

TM9120 and TMS750B specification matrix — Listing labels reported by the source
Publisher name	Source guide	Listing-entry count	Labels named by the source
Grove	TM9120 and TMS750B	2	TM9120 and TMS750B

Boom
Specification	TM9120	TMS750B
Min Height @ Max Raise Angle	42 ft	35 ft
Max Height @ Max Raise Angle - No Jib	130 ft	118 ft
Min Working Radius	10 ft	32.16 ft
Max Working Radius	120 ft	56.11 ft
Max Elevating Angle	80 degrees	78 degrees
Swing Speed	2 rpm	2.5 rpm
Number Of Sections	4	4

Specification	TM9120
Max Lift Capacity	240,000 lb

Dimensions and weight
Specification	TM9120	TMS750B
Transport Length	50.44 ft	41.11 ft
Transport Width	10.96 ft	7.67 ft
Transport Height	12.94 ft	10.8 ft
Wheelbase	20 ft	18.67 ft
Width W/ Outriggers Extended	27.55 ft	20 ft
Carrier Length	40.76 ft	35.8 ft
Upper Structure Tail Swing Radius	14.6 ft	13.34 ft

Operational
Specification	TM9120	TMS750B
Operating Weight	109,500 lb	77,531 lb
Number Of Axels	4	4
Carrier Fuel Capacity	100 gal	99.4 gal
Upper Structure Hydraulic System Fluid Capacity	280 gal	218 gal
Operating Voltage	24 V	12 V

Specification	TM9120
Tire Size	14.00R24

Specification	TM9120
Max Speed - Forward	50 mph

Specification	TMS750B
Drive System	8 x 4
Steering	Front axles, mechanical with hydraulic power assist controlled by steering wheel
Max Speed	50 mph

Suspension System
Specification	TMS750B
Front	Spring mounted tandem
Rear	Solid mount tandem with equalizing beam and solid steel saddles

Tires
Specification	TMS750B
Standard_Rear	11:00 x 20-14PR
Standard_Option_Front	425/65R22.5-18PR

Variants — Source comparison annotation
Source guide	Differing-field count reported
TM9120 and TMS750B	43

Ratios
Figure	TM9120	TMS750B
Engine horsepower per 1,000 lb of weight	2.3	3.2

Grove TM9120 and TMS750B: hydraulic truck crane

TM9120 and TMS750B: forum references — Forum-title search
Forum index	Equipment class queried	Names in the search	Matching titles
Heavy Equipment Forums	hydraulic truck crane	Grove and the TM9120, TMS750B. That is too few titles to say what owners mostly ask about, so the most recent are listed instead	2

TM9120 and TMS750B: dated market and recall observations — Dated listing search
Date	Listing index	Equipment class	Names queried	Result
2026-09-24	MachineryTrader (machinerytrader.com)	hydraulic truck crane	TM9120, TMS750B	No matching offers in this snapshot

Dated CPSC search
Date	Database	Names queried	Result
2026-09-24	U.S. Consumer Product Safety Commission	Grove; TM9120, TMS750B	No matching recall in the stated search

Sources for this page
Evidence class	Document, classification and recorded date
Reference site	Reference site: Grove TM9120 — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Grove TMS750B — RitchieSpecs. Observed 2026-09-24.
Forum threads	Forum threads: Heavy Equipment Forums thread index for Grove TM9120 and TMS750B — Heavy Equipment Forums. Observed 2026-09-24.
Federal agency data	Federal agency data: Recall database search for Grove — U.S. Consumer Product Safety Commission. Observed 2026-09-24.

TM9120

Specification	Source figure
Boom
Min Height @ Max Raise Angle	42 ft
Max Height @ Max Raise Angle - No Jib	130 ft
Min Working Radius	10 ft
Max Working Radius	120 ft
Max Elevating Angle	80 degrees
Max Lift Capacity	240,000 lb
Swing Speed	2 rpm
Number Of Sections	4
Dimensions and weight
Transport Length	50.44 ft
Transport Width	10.96 ft
Transport Height	12.94 ft
Width W/ Outriggers Extended	27.55 ft
Carrier Length	40.76 ft
Upper Structure Tail Swing Radius	14.6 ft
Wheelbase	20 ft
Carrier Engine
Displacement	854.4 cu in
Number Of Cylinders	6
Operational
Operating Weight	109,500 lb
Number Of Axels	4
Carrier Fuel Capacity	100 gal
Upper Structure Hydraulic System Fluid Capacity	280 gal
Operating Voltage	24 V
Tire Size	14.00R24
Transmission and speeds
Transmission Type	Roadranger
Number Of Forward Gears	10
Number Of Reverse Gears	3
Max Speed - Forward	50 mph
Additional specifications
Make	Grove
Model	6CTA8.3
Power Measured @	2,200 rpm
Max Torque	716 lb-ft
Torque Measured @	1,500 rpm
Gross Power	250 hp

TMS750B

Specification	Source figure
Boom
Min Height @ Max Raise Angle	35 ft
Max Height @ Max Raise Angle - No Jib	118 ft
Min Working Radius	32.16 ft
Max Working Radius	56.11 ft
Max Elevating Angle	78 degrees
Swing Speed	2.5 rpm
Number Of Sections	4
Dimensions and weight
Transport Length	41.11 ft
Transport Width	7.67 ft
Transport Height	10.8 ft
Ground Clearance	0.92 ft
Width W/ Outriggers Extended	20 ft
Carrier Length	35.8 ft
Upper Structure Tail Swing Radius	13.34 ft
Wheelbase	18.67 ft
Turning Radius	43.9 ft
Gradeability	40 %
Carrier Engine
Displacement	506.5 cu in
Number Of Cylinders	6
Operational
Operating Weight	77,531 lb
Number Of Axels	4
Carrier Fuel Capacity	99.4 gal
Upper Structure Hydraulic System Fluid Capacity	218 gal
Operating Voltage	12 V
Transmission and speeds
Transmission Type	Roadranger
Number Of Forward Gears	13
Number Of Reverse Gears	3
Drive System	8 x 4
Steering	Front axles, mechanical with hydraulic power assist controlled by steering wheel
Max Speed	50 mph
Suspension System
Front	Spring mounted tandem
Rear	Solid mount tandem with equalizing beam and solid steel saddles
Tires
Standard_Rear	11:00 x 20-14PR
Standard_Option_Front	425/65R22.5-18PR
Additional specifications
Make	Grove
Model	Cummins 6CTA
Gross Power	249.5 hp
Power Measured @	2,400 rpm
Max Torque	660.2 lb-ft
Torque Measured @	1,300 rpm

Compare Grove TM9120, TMS750B

Boom
Specification	TM9120	TMS750B
Min Height @ Max Raise Angle	42 ft	35 ft
Max Height @ Max Raise Angle - No Jib	130 ft	118 ft
Min Working Radius	10 ft	32.16 ft
Max Working Radius	120 ft	56.11 ft
Max Elevating Angle	80 degrees	78 degrees
Swing Speed	2 rpm	2.5 rpm
Number Of Sections	4	4

Dimensions and weight
Specification	TM9120	TMS750B
Transport Length	50.44 ft	41.11 ft
Transport Width	10.96 ft	7.67 ft
Transport Height	12.94 ft	10.8 ft
Wheelbase	20 ft	18.67 ft
Width W/ Outriggers Extended	27.55 ft	20 ft
Carrier Length	40.76 ft	35.8 ft
Upper Structure Tail Swing Radius	14.6 ft	13.34 ft

Operational
Specification	TM9120	TMS750B
Operating Weight	109,500 lb	77,531 lb
Number Of Axels	4	4
Carrier Fuel Capacity	100 gal	99.4 gal
Upper Structure Hydraulic System Fluid Capacity	280 gal	218 gal
Operating Voltage	24 V	12 V