Machine models

Grove RT500C to RT735 specifications

Entries in this reference
Listing-entry count
6

Short answer

Grove RT500C to RT735: rough terrain cranes.

Selected configuration figures
Configuration	Documented field and quantity
RT500C	Gross Power 130.1 hp Operating Weight 53,053 lb
RT522B	Gross Power 129.7 hp Operating Weight 44,648 lb
RT525E	Gross Power 155.6 hp Operating Weight 52,106 lb
RT528B	Gross Power 130 hp Operating Weight 54,200 lb
RT620	Net Power 142 hp Operating Weight 47,980 lb
RT735	Net Power 170 hp Operating Weight 75,646 lb

RT500C to RT735 specification matrix — Listing labels reported by the source
Publisher name	Source guide	Listing-entry count	Labels named by the source
Grove	RT500C to RT735	6	RT500C, RT522B, RT525E, RT528B, RT620, and RT735

Boom
Specification	RT500C	RT522B	RT525E	RT528B	RT620	RT735
Min Height @ Max Raise Angle	28 ft	30 ft	31 ft	32 ft	28 ft	33 ft
Max Height @ Max Raise Angle - No Jib	70 ft	78 ft	75 ft	110 ft	70 ft	112 ft
Max Elevating Angle	75 degrees	78 degrees	76 degrees	75 degrees	75 degrees	76 degrees
Number Of Sections	3	3	3	3	3	3

Specification	RT500C	RT522B	RT525E	RT528B	RT620
Min Operating Radius	10 ft	10 ft	10 ft	10 ft	10 ft
Max Operating Radius	65 ft	95 ft	90 ft	70 ft	65 ft
Max Lift Capacity	56,000 lb	44,000 lb	50,000 lb	56,000 lb	40,000 lb

Specification	RT500C	RT522B	RT525E	RT620	RT735
Swing Speed	2.5 rpm	3 rpm	3 rpm	3 rpm	2.6 rpm

Dimensions and weight
Specification	RT500C	RT522B	RT525E	RT528B	RT620
Transport Length	36.81 ft	35.96 ft	37.64 ft	35.87 ft	35.56 ft
Transport Width	18.8 ft	8.46 ft	8.55 ft	8.75 ft	7.97 ft
Transport Height	11.2 ft	10.37 ft	11.7 ft	11.08 ft	10.95 ft
Wheelbase	10.1 in	10.09 in	11.09 in	10.09 in	9.49 in
Width W/ Outriggers Extended	20.38 ft	18.51 ft	20 ft	18.38 ft	17.63 ft
Carrier/Base Length	21.6 ft	21.35 ft	22.53 ft	20 ft	20.35 ft
Upper Structure Tail Swing Radius	10.26 ft	11.12 ft	11.2 ft	10.49 ft	10.28 ft

Specification	RT500C	RT525E	RT528B	RT620
Ground Clearance	1.6 ft	1.22 ft	1.6 ft	1.13 ft

Specification	RT500C
Turning Radius	17 ft

Engine
Specification	RT500C	RT528B	RT620	RT735
Number Of Cylinders	6	4	8	6
Displacement	360.1 cu in	500 cu in	504 cu in	318 cu in

Specification	RT500C	RT522B	RT525E	RT528B	RT620	RT735
Engine Model	6BT 5.9L	4BTA3.9	QSB5.9E	8.2L	V-504C	V555-C200
Power Measured @	2,500 rpm	2,500 rpm	2,500 rpm	2,800 rpm	2,600 rpm	2,500 rpm
Max Torque	386 lb-ft	360 lb-ft	440 lb-ft	318 lb-ft	303 lb-ft	392 lb-ft
Torque Measured @	1,400 rpm	1,500 rpm	1,500 rpm	1,000 rpm	1,800 rpm	1,500 rpm

Specification	RT500C	RT522B	RT525E	RT528B
Gross Power	130.1 hp	129.7 hp	155.6 hp	130 hp

Specification	RT500C	RT522B	RT525E	RT528B	RT620
Aspiration	Turbocharged	turbocharged	turbocharged	natural	natural

Specification	RT528B	RT620	RT735
Engine Make	Detroit Diesel	Cummins Diesel	Cummins Diesel
Bore	4.3 in	4.7 in	3.9 in
Stroke	4.5 in	3.8 in	4.5 in

Specification	RT620	RT735
Net Power	142 hp	170 hp

Operational
Specification	RT500C	RT522B	RT525E	RT528B	RT620	RT735
Operating Weight	53,053 lb	44,648 lb	52,106 lb	54,200 lb	47,980 lb	75,646 lb
Fuel Capacity	60 gal	39.9 gal	58.2 gal	60 gal	50 gal	60 gal
Operating Voltage	24 V	12 V	24 V	24 V	24 V	12 V
Tire Size	20.5X25-24PR	17.5X25-20PR	20.5X25-24PR	20.5X25 24PR	16.00x24	21.00X25-24PR

Specification	RT522B	RT525E	RT528B	RT620	RT735
Hydraulic System Fluid Capacity	81.9 gal	90 gal	88 gal	82.6 gal	154 gal

Specification	RT528B	RT620	RT735
Alternator Supplied Amperage	90 amps	55 amps	65 amps

Transmission and speeds
Specification	RT500C	RT522B	RT525E	RT528B	RT620	RT735
Transmission Type	Remote mounted powershift	full powershift	full powershift	remote mounted powershift	full powershift	full powershift
Number Of Forward Gears	6	6	6	6	6	6
Number Of Reverse Gears	6	6	6	6	6	6
Max Speed - Forward	22.8 mph	21.8 mph	24 mph	23.2 mph	28.5 mph	20.9 mph

Weights
Specification	RT500C
Counterweight	10,170 lb

Hydraulic System
Specification	RT500C
Max Operating Pressure	2,500 Psi

Variants — Source comparison annotation
Source guide	Differing-field count reported
RT500C to RT735	38

Ratios
Figure	RT500C	RT522B	RT525E	RT528B	RT620	RT735
Engine horsepower per 1,000 lb of weight	2.5	2.9	3.0	2.4	3.0	2.2
Fuel tank per engine horsepower	0.46 gal	0.31 gal	0.37 gal	0.46 gal	0.35 gal	0.35 gal

Grove RT500C to RT735: rough terrain crane

RT500C to RT735: forum references — Forum-title search
Forum index	Equipment class queried	Names in the search	Matching titles
Heavy Equipment Forums	rough terrain crane	Grove and the RT522, RT528 line that the RT522B, RT528B, RT620 belongs to (no title names the exact model). That is too few titles to say what owners mostly ask about, so the most recent are listed instead	4

Grove Rt528 Crane (Heavy Equipment Forums, 2024-07-27)
1982 Grove RT 522 Help And Manuals Wanted (Heavy Equipment Forums, 2023-01-18)
Outrigger Cylinders Will Not Retract On My 1982 Grove Rt522 (Heavy Equipment Forums, 2021-06-27)
Need Grove Rt620 Used Boom Cylinder (Heavy Equipment Forums, 2012-08-31)

Used market for the RT500C to RT735 — Dated first-page listing snapshot
Observation date	Listing source	Equipment search	Listings
2026-09-24	MachineryTrader	Grove rough terrain crane	2

Model	Listed	Model years	Lowest asking	Highest asking	Median asking	Median hours
RT522B	1	1998	$29,000	$29,000	$29,000	None shown
RT620	1	1992	$19,203	$19,203	$19,203	None shown

RT500C to RT735: recall reference — Dated CPSC search
Search date	Database	Names queried	Search result
2026-09-24	U.S. Consumer Product Safety Commission	Grove together with the rough terrain crane RT500C, RT522B, RT525E, RT528B	No matching recall in this search

Sources for this page
Evidence class	Document, classification and recorded date
Reference site	Reference site: Grove RT500C — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Grove RT522B — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Grove RT525E — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Grove RT528B — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Grove RT620 — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Grove RT735 — RitchieSpecs. Observed 2026-09-24.
Forum threads	Forum threads: Heavy Equipment Forums thread index for Grove RT500C to RT735 — Heavy Equipment Forums. Observed 2026-09-24.
Used-market listings	Used-market listings: MachineryTrader listings for Grove RT522B — MachineryTrader. 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.

Recorded observations — Forum-title snapshot
Observation field	Recorded value
Title count	4
Forum indexes	Heavy Equipment Forums
Search wording	the RT500C to RT735 rough terrain crane
Topics in the title results	hydraulics
Latest title quoted by the reference	Grove Rt528 Crane

Grove RT500C to RT735: Configuration records

RT500C

Specification	Source figure
Boom
Min Height @ Max Raise Angle	28 ft
Max Height @ Max Raise Angle - No Jib	70 ft
Min Operating Radius	10 ft
Max Elevating Angle	75 degrees
Max Operating Radius	65 ft
Number Of Sections	3
Max Lift Capacity	56,000 lb
Dimensions and weight
Transport Length	36.81 ft
Transport Width	18.8 ft
Transport Height	11.2 ft
Engine
Number Of Cylinders	6
Engine Model	6BT 5.9L
Gross Power	130.1 hp
Power Measured @	2,500 rpm
Max Torque	386 lb-ft
Torque Measured @	1,400 rpm
Aspiration	Turbocharged
Displacement	360.1 cu in
Operational
Operating Weight	53,053 lb
Fuel Capacity	60 gal
Operating Voltage	24 V
Tire Size	20.5X25-24PR
Transmission and speeds
Transmission Type	Remote mounted powershift
Number Of Forward Gears	6
Number Of Reverse Gears	6
Max Speed - Forward	22.8 mph
Weights
Counterweight	10,170 lb
Hydraulic System
Max Operating Pressure	2,500 Psi
Additional specifications
Swing Speed	2.5 rpm
Ground Clearance	1.6 ft
Width W/ Outriggers Extended	20.38 ft
Carrier/Base Length	21.6 ft
Upper Structure Tail Swing Radius	10.26 ft
Turning Radius	17 ft

Source

RT522B

Specification	Source figure
Boom
Min Height @ Max Raise Angle	30 ft
Max Height @ Max Raise Angle - No Jib	78 ft
Min Operating Radius	10 ft
Max Elevating Angle	78 degrees
Max Operating Radius	95 ft
Number Of Sections	3
Max Lift Capacity	44,000 lb
Dimensions and weight
Transport Length	35.96 ft
Transport Width	8.46 ft
Transport Height	10.37 ft
Engine
Engine Model	4BTA3.9
Gross Power	129.7 hp
Power Measured @	2,500 rpm
Max Torque	360 lb-ft
Torque Measured @	1,500 rpm
Aspiration	turbocharged
Operational
Operating Weight	44,648 lb
Fuel Capacity	39.9 gal
Hydraulic System Fluid Capacity	81.9 gal
Operating Voltage	12 V
Tire Size	17.5X25-20PR
Transmission and speeds
Transmission Type	full powershift
Number Of Forward Gears	6
Number Of Reverse Gears	6
Max Speed - Forward	21.8 mph
Additional specifications
Swing Speed	3 rpm
Width W/ Outriggers Extended	18.51 ft
Carrier/Base Length	21.35 ft
Upper Structure Tail Swing Radius	11.12 ft

Source

RT525E

Specification	Source figure
Boom
Min Height @ Max Raise Angle	31 ft
Max Height @ Max Raise Angle - No Jib	75 ft
Min Operating Radius	10 ft
Max Elevating Angle	76 degrees
Max Operating Radius	90 ft
Number Of Sections	3
Max Lift Capacity	50,000 lb
Dimensions and weight
Transport Length	37.64 ft
Transport Width	8.55 ft
Transport Height	11.7 ft
Engine
Engine Model	QSB5.9E
Gross Power	155.6 hp
Power Measured @	2,500 rpm
Max Torque	440 lb-ft
Torque Measured @	1,500 rpm
Aspiration	turbocharged
Operational
Operating Weight	52,106 lb
Fuel Capacity	58.2 gal
Hydraulic System Fluid Capacity	90 gal
Operating Voltage	24 V
Tire Size	20.5X25-24PR
Transmission and speeds
Transmission Type	full powershift
Number Of Forward Gears	6
Number Of Reverse Gears	6
Max Speed - Forward	24 mph
Additional specifications
Swing Speed	3 rpm
Ground Clearance	1.22 ft
Width W/ Outriggers Extended	20 ft
Carrier/Base Length	22.53 ft
Upper Structure Tail Swing Radius	11.2 ft

Source

RT528B

Specification	Source figure
Boom
Min Height @ Max Raise Angle	32 ft
Max Height @ Max Raise Angle - No Jib	110 ft
Min Operating Radius	10 ft
Max Elevating Angle	75 degrees
Max Operating Radius	70 ft
Number Of Sections	3
Max Lift Capacity	56,000 lb
Dimensions and weight
Transport Length	35.87 ft
Transport Width	8.75 ft
Transport Height	11.08 ft
Engine
Number Of Cylinders	4
Engine Model	8.2L
Gross Power	130 hp
Power Measured @	2,800 rpm
Max Torque	318 lb-ft
Torque Measured @	1,000 rpm
Aspiration	natural
Displacement	500 cu in
Engine Make	Detroit Diesel
Bore	4.3 in
Stroke	4.5 in
Operational
Operating Weight	54,200 lb
Fuel Capacity	60 gal
Hydraulic System Fluid Capacity	88 gal
Operating Voltage	24 V
Tire Size	20.5X25 24PR
Alternator Supplied Amperage	90 amps
Transmission and speeds
Transmission Type	remote mounted powershift
Number Of Forward Gears	6
Number Of Reverse Gears	6
Max Speed - Forward	23.2 mph
Additional specifications
Ground Clearance	1.6 ft
Width W/ Outriggers Extended	18.38 ft
Carrier/Base Length	20 ft
Upper Structure Tail Swing Radius	10.49 ft

Source

RT620

Specification	Source figure
Boom
Min Height @ Max Raise Angle	28 ft
Max Height @ Max Raise Angle - No Jib	70 ft
Min Operating Radius	10 ft
Max Elevating Angle	75 degrees
Max Operating Radius	65 ft
Number Of Sections	3
Max Lift Capacity	40,000 lb
Dimensions and weight
Transport Length	35.56 ft
Transport Width	7.97 ft
Transport Height	10.95 ft
Engine
Number Of Cylinders	8
Engine Model	V-504C
Power Measured @	2,600 rpm
Max Torque	303 lb-ft
Torque Measured @	1,800 rpm
Aspiration	natural
Displacement	504 cu in
Engine Make	Cummins Diesel
Net Power	142 hp
Bore	4.7 in
Stroke	3.8 in
Operational
Operating Weight	47,980 lb
Fuel Capacity	50 gal
Hydraulic System Fluid Capacity	82.6 gal
Operating Voltage	24 V
Tire Size	16.00x24
Alternator Supplied Amperage	55 amps
Transmission and speeds
Transmission Type	full powershift
Number Of Forward Gears	6
Number Of Reverse Gears	6
Max Speed - Forward	28.5 mph
Additional specifications
Swing Speed	3 rpm
Ground Clearance	1.13 ft
Width W/ Outriggers Extended	17.63 ft
Carrier/Base Length	20.35 ft
Upper Structure Tail Swing Radius	10.28 ft

Source

RT735

Specification	Source figure
Boom
Min Height @ Max Raise Angle	33 ft
Max Height @ Max Raise Angle - No Jib	112 ft
Max Elevating Angle	76 degrees
Number Of Sections	3
Engine
Number Of Cylinders	6
Engine Model	V555-C200
Power Measured @	2,500 rpm
Max Torque	392 lb-ft
Torque Measured @	1,500 rpm
Displacement	318 cu in
Engine Make	Cummins Diesel
Net Power	170 hp
Bore	3.9 in
Stroke	4.5 in
Operational
Operating Weight	75,646 lb
Fuel Capacity	60 gal
Hydraulic System Fluid Capacity	154 gal
Operating Voltage	12 V
Tire Size	21.00X25-24PR
Alternator Supplied Amperage	65 amps
Transmission and speeds
Transmission Type	full powershift
Number Of Forward Gears	6
Number Of Reverse Gears	6
Max Speed - Forward	20.9 mph
Additional specifications
Swing Speed	2.6 rpm

Source

Compare Grove RT500C, RT522B, RT525E, RT528B, RT620, RT735

Boom
Specification	RT500C	RT522B	RT525E	RT528B	RT620	RT735
Min Height @ Max Raise Angle	28 ft	30 ft	31 ft	32 ft	28 ft	33 ft
Max Height @ Max Raise Angle - No Jib	70 ft	78 ft	75 ft	110 ft	70 ft	112 ft
Max Elevating Angle	75 degrees	78 degrees	76 degrees	75 degrees	75 degrees	76 degrees
Number Of Sections	3	3	3	3	3	3

Engine
Specification	RT500C	RT522B	RT525E	RT528B	RT620	RT735
Engine Model	6BT 5.9L	4BTA3.9	QSB5.9E	8.2L	V-504C	V555-C200
Power Measured @	2,500 rpm	2,500 rpm	2,500 rpm	2,800 rpm	2,600 rpm	2,500 rpm
Max Torque	386 lb-ft	360 lb-ft	440 lb-ft	318 lb-ft	303 lb-ft	392 lb-ft
Torque Measured @	1,400 rpm	1,500 rpm	1,500 rpm	1,000 rpm	1,800 rpm	1,500 rpm

Operational
Specification	RT500C	RT522B	RT525E	RT528B	RT620	RT735
Operating Weight	53,053 lb	44,648 lb	52,106 lb	54,200 lb	47,980 lb	75,646 lb
Fuel Capacity	60 gal	39.9 gal	58.2 gal	60 gal	50 gal	60 gal
Operating Voltage	24 V	12 V	24 V	24 V	24 V	12 V
Tire Size	20.5X25-24PR	17.5X25-20PR	20.5X25-24PR	20.5X25 24PR	16.00x24	21.00X25-24PR

Transmission and speeds
Specification	RT500C	RT522B	RT525E	RT528B	RT620	RT735
Transmission Type	Remote mounted powershift	full powershift	full powershift	remote mounted powershift	full powershift	full powershift
Number Of Forward Gears	6	6	6	6	6	6
Number Of Reverse Gears	6	6	6	6	6	6
Max Speed - Forward	22.8 mph	21.8 mph	24 mph	23.2 mph	28.5 mph	20.9 mph

More in Grove: RT530E–RT640C, RT625/RT635, RT755/RT880/RT880E.

Grove RT500C to RT735 specifications

Grove RT500C to RT735: rough terrain crane

Sources for this page

Grove RT500C to RT735: Configuration records