Backhoe Cylinder

How to calculate required GPM for hydraulic pump?

Looking to get a PTO driven hydraulic pump to run a 3pt backhoe on my tractor. How do I go about figuring out what size I need. The backhoe has fairly large cylinders on it. They are may be 2x larger than the ones on the loader which runs off the internal system and it operates very slow. It seems that common pto pumps come in 11 or 21 GPM. That seems to be quite a spread so I would like to get the correct one the first time. The tractor is rated at 40hp so I should have plenty of power at any RPM.

You determine it by calculating the volume of your cylinders and hydraulic hoses. Then decide how many times per minute you want your oil circulated and cooled based on how hard you intend to work the hoe. The bigger pump will do the same work as smaller one, but not the other way around.

New Replacement 1543260C1 Case Backhoe 580SM Loader Lift Cylinder Seal Kit
New Replacement 1543260C1 Case Backhoe 580SM Loader Lift Cylinder Seal Kit
$23.81
Time Remaining: 3h 8m
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G105545 Case Backhoe Loader Dipper Swing Stabilizer Cylinder Seal Kit 580C
G105545 Case Backhoe Loader Dipper Swing Stabilizer Cylinder Seal Kit 580C
$38.38
Time Remaining: 4h 16m
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REPLACEMENT WHEEL SLAVE CYLINDER CASE BACKHOES A51976
REPLACEMENT WHEEL SLAVE CYLINDER CASE BACKHOES A51976
$36.00
Time Remaining: 4h 57m
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G32696 Case Backhoe Loader Boom Tilt Cylinder Seal Kit 680B 680C 850 1150 1150B
G32696 Case Backhoe Loader Boom Tilt Cylinder Seal Kit 680B 680C 850 1150 1150B
$41.99
Time Remaining: 5h 5m
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878000489 New Komatsu Backhoe Loader Boom Cylinder Seal Kit WB140 2 WB150 2N +
878000489 New Komatsu Backhoe Loader Boom Cylinder Seal Kit WB140 2 WB150 2N +
$73.63
Time Remaining: 5h 6m
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Backhoe Stabilizer Hyd Cylinder Seal Kit Caterpillar 931B Crawler Ldr 8T1370
Backhoe Stabilizer Hyd Cylinder Seal Kit Caterpillar 931B Crawler Ldr 8T1370
$82.60
Time Remaining: 5h 16m
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Backhoe Stabilizer Hyd Cylinder Seal Kit Caterpillar D3B Crawler Ldr 2406899
Backhoe Stabilizer Hyd Cylinder Seal Kit Caterpillar D3B Crawler Ldr 2406899
$82.60
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Backhoe Stabilizer Hyd Cylinder Seal Kit Caterpillar D3B Crawler Ldr 8T1370
Backhoe Stabilizer Hyd Cylinder Seal Kit Caterpillar D3B Crawler Ldr 8T1370
$82.60
Time Remaining: 5h 16m
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Backhoe Stabilizer Hyd Cylinder Seal Kit Caterpillar 931B Crawler Ldr 2406899
Backhoe Stabilizer Hyd Cylinder Seal Kit Caterpillar 931B Crawler Ldr 2406899
$82.60
Time Remaining: 5h 16m
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Backhoe Stick Hyd Cylinder Seal Kit Caterpillar 931B Crawler Loader 8T1370
Backhoe Stick Hyd Cylinder Seal Kit Caterpillar 931B Crawler Loader 8T1370
$82.60
Time Remaining: 5h 16m
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Backhoe Stick Hyd Cylinder Seal Kit Caterpillar D3 Crawler Loader 2406899
Backhoe Stick Hyd Cylinder Seal Kit Caterpillar D3 Crawler Loader 2406899
$82.60
Time Remaining: 5h 17m
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Backhoe Stick Hyd Cylinder Seal Kit Caterpillar D3B Crawler Loader 2406899
Backhoe Stick Hyd Cylinder Seal Kit Caterpillar D3B Crawler Loader 2406899
$82.60
Time Remaining: 5h 17m
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Backhoe Stick Hyd Cylinder Seal Kit for Caterpillar D3 Crawler Tractor 8T1370
Backhoe Stick Hyd Cylinder Seal Kit for Caterpillar D3 Crawler Tractor 8T1370
$82.60
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Backhoe Stick Hyd Cylinder Seal Kit for Caterpillar D3B Crawler Tractor 8T1370
Backhoe Stick Hyd Cylinder Seal Kit for Caterpillar D3B Crawler Tractor 8T1370
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Backhoe Stick Hyd Cylinder Seal Kit Caterpillar 931B Crawler Loader 2406899
Backhoe Stick Hyd Cylinder Seal Kit Caterpillar 931B Crawler Loader 2406899
$82.60
Time Remaining: 5h 17m
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1346478C2 Case Backhoe Loader Bucket Boom Cylinder Seal Kit 680L with Rod
1346478C2 Case Backhoe Loader Bucket Boom Cylinder Seal Kit 680L with Rod
$60.00
Time Remaining: 5h 46m
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G34827 New Case Backhoe Boom Cylinder Seal Kit 680E Rod 2 1 4 Bore 4
G34827 New Case Backhoe Boom Cylinder Seal Kit 680E Rod 2 1 4 Bore 4
$31.99
Time Remaining: 5h 52m
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G105556 Case Backhoe Dozer Boom Bucket Cylinder Seal Kit 680E 680G 680H 780 B ++
G105556 Case Backhoe Dozer Boom Bucket Cylinder Seal Kit 680E 680G 680H 780 B ++
$36.71
Time Remaining: 5h 53m
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G105513 Case Loader Tilt Backhoe Dipper Boom Cylinder Seal Kit 680E G H 780 W24+
G105513 Case Loader Tilt Backhoe Dipper Boom Cylinder Seal Kit 680E G H 780 W24+
$50.00
Time Remaining: 5h 56m
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AH212090 John Deere Backhoe Loader Blade Angle Cylinder Seal Kit 550H 650H +
AH212090 John Deere Backhoe Loader Blade Angle Cylinder Seal Kit 550H 650H +
$8.65
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G109434 New Case Backhoe Bucket Cylinder 580B C D E
G109434 New Case Backhoe Bucket Cylinder 580B C D E
$700.78
Time Remaining: 6h 8m
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1980181C2 New Case 590 Backhoe Swing Cylinder Seal Kit
1980181C2 New Case 590 Backhoe Swing Cylinder Seal Kit
$32.99
Time Remaining: 6h 16m
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G32668 Case 780 Backhoe Bucket Cylinder Seal Kit W18 W20 W20B W24 B Loader Lift
G32668 Case 780 Backhoe Bucket Cylinder Seal Kit W18 W20 W20B W24 B Loader Lift
$45.00
Time Remaining: 6h 18m
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G32695 New Case Backhoe Loader Swing Cylinder Seal Kit 680B 850 1150 Dozer
G32695 New Case Backhoe Loader Swing Cylinder Seal Kit 680B 850 1150 Dozer
$50.00
Time Remaining: 6h 21m
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G105531 Case 780 Backhoe Bucket Cylinder Seal Kit W24B W24C Loader Lift 880 Ext+
G105531 Case 780 Backhoe Bucket Cylinder Seal Kit W24B W24C Loader Lift 880 Ext+
$42.03
Time Remaining: 6h 22m
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85819350 New Holland Backhoe Loader Crowd Cylinder Seal Kit LB75 Rod
85819350 New Holland Backhoe Loader Crowd Cylinder Seal Kit LB75 Rod
$72.81
Time Remaining: 6h 28m
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G32299 New Case 680B Backhoe Stabilizer Cylinder Seal Kit 1150 850 750 Boom ++
G32299 New Case 680B Backhoe Stabilizer Cylinder Seal Kit 1150 850 750 Boom ++
$37.55
Time Remaining: 6h 30m
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991 00127 New JCB 1400  1400B Backhoe Early Dipper Cylinder Seal Kit
991 00127 New JCB 1400 1400B Backhoe Early Dipper Cylinder Seal Kit
$47.15
Time Remaining: 6h 31m
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1543270C1 Case 680L Backhoe Stabilizer 850E  855E Dozer Angle Cylinder Seal Kit
1543270C1 Case 680L Backhoe Stabilizer 850E 855E Dozer Angle Cylinder Seal Kit
$45.00
Time Remaining: 6h 33m
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E3NN3A540BA Ford New Holland Backhoe Power Steering Cylinder 555 555A 655 655A
E3NN3A540BA Ford New Holland Backhoe Power Steering Cylinder 555 555A 655 655A
$277.56
Time Remaining: 7h 5m
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G34636 Case Backhoe Boom Bucket Ext Dipper Dozer Cylinder Seal Kit 310G 880 ++
G34636 Case Backhoe Boom Bucket Ext Dipper Dozer Cylinder Seal Kit 310G 880 ++
$35.00
Time Remaining: 7h 30m
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PT8230 New John Deere Backhoe 7 Boom Bucket Cylinder Seal Kit 1 Rod
PT8230 New John Deere Backhoe 7 Boom Bucket Cylinder Seal Kit 1 Rod
$58.80
Time Remaining: 7h 33m
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191747A1 Case Backhoe 580L 580M 580 Super M Series 3 Swing Cylinder Seal Kit
191747A1 Case Backhoe 580L 580M 580 Super M Series 3 Swing Cylinder Seal Kit
$44.69
Time Remaining: 7h 37m
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1542919C2 New Case 580 Super L Backhoe Loader 580SL Boom Cylinder Seal Kit
1542919C2 New Case 580 Super L Backhoe Loader 580SL Boom Cylinder Seal Kit
$61.75
Time Remaining: 7h 41m
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G109453 Case Backhoe Loader Dipper Cylinder Seal Kit 480C 580C 680K 850D W11 +
G109453 Case Backhoe Loader Dipper Cylinder Seal Kit 480C 580C 680K 850D W11 +
$30.92
Time Remaining: 7h 47m
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G105517 Case Backhoe Crawler Dozer WL Cylinder Seal Kit 310G 450 580 680C 780
G105517 Case Backhoe Crawler Dozer WL Cylinder Seal Kit 310G 450 580 680C 780
$35.00
Time Remaining: 7h 51m
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251363 New Ford Loader Backhoe Cylinder Seal Kit 455 555 555A 555B 655 655A
251363 New Ford Loader Backhoe Cylinder Seal Kit 455 555 555A 555B 655 655A
$20.67
Time Remaining: 7h 58m
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G34648 New Case Backhoe Loader Lift Cylinder Seal Kit 450 475 680B 680C
G34648 New Case Backhoe Loader Lift Cylinder Seal Kit 450 475 680B 680C
$35.09
Time Remaining: 7h 58m
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Crowd Hydraulic Cylinder Seal Kit John Deere 310E Backhoe Loader AH157980
Crowd Hydraulic Cylinder Seal Kit John Deere 310E Backhoe Loader AH157980
$124.98
Time Remaining: 8h 8m
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Crowd Hydraulic Cylinder Seal Kit John Deere 310G Backhoe Loader AH157980
Crowd Hydraulic Cylinder Seal Kit John Deere 310G Backhoe Loader AH157980
$124.98
Time Remaining: 8h 9m
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G34819 Case Backhoe Swing Steering Cylinder Seal Kit 680E 680G 680H 680K 780B
G34819 Case Backhoe Swing Steering Cylinder Seal Kit 680E 680G 680H 680K 780B
$12.70
Time Remaining: 8h 13m
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G101021 Case Backhoe 680E Steering Cylinder Seal Kit 1 1 4 Rod
G101021 Case Backhoe 680E Steering Cylinder Seal Kit 1 1 4 Rod
$16.60
Time Remaining: 8h 28m
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Case 580E or 580K backhoe hydraulic CYLINDER wheel loader
Case 580E or 580K backhoe hydraulic CYLINDER wheel loader
$775.00
Time Remaining: 8h 30m
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A43296 Case Backhoe Steering Cylinder Seal Kit 680E 1 1 4 Bore
A43296 Case Backhoe Steering Cylinder Seal Kit 680E 1 1 4 Bore
$15.19
Time Remaining: 8h 30m
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G105516 Case 780 Backhoe Dipper Cylinder Seal Kit W26 W26FL W36 Loader Lift 1450
G105516 Case 780 Backhoe Dipper Cylinder Seal Kit W26 W26FL W36 Loader Lift 1450
$49.45
Time Remaining: 8h 40m
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G105560 New Case Backhoe Loader Boom Bucket Cylinder Seal Kit 780B
G105560 New Case Backhoe Loader Boom Bucket Cylinder Seal Kit 780B
$35.29
Time Remaining: 8h 45m
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Boom Swing Cylinder 1343584C2 Case 590 Turbo Backhoe Loader
Boom Swing Cylinder 1343584C2 Case 590 Turbo Backhoe Loader
$699.99
Time Remaining: 8h 51m
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G105562 Case 780B Backhoe Dipper Cylinder Seal Kit 1pc
G105562 Case 780B Backhoe Dipper Cylinder Seal Kit 1pc
$52.98
Time Remaining: 8h 53m
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G105557 Case Backhoe 780B Stabilizer Cylinder Seal Kit 1pc 225 Rod
G105557 Case Backhoe 780B Stabilizer Cylinder Seal Kit 1pc 225 Rod
$32.83
Time Remaining: 9h 1m
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G34594 Case Backhoe Loader Dipper Swing Stabilizer Cylinder Seal Kit 580CK
G34594 Case Backhoe Loader Dipper Swing Stabilizer Cylinder Seal Kit 580CK
$38.79
Time Remaining: 9h 4m
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RE16209 John Deere Backhoe Loader Boom Cylinder Seal Kit Bore Only 640D 648D +
RE16209 John Deere Backhoe Loader Boom Cylinder Seal Kit Bore Only 640D 648D +
$21.68
Time Remaining: 9h 14m
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AR105429 JD Backhoe Loader Bucket Tilt Cylinder Seal Kit 310A 310B 410 500C
AR105429 JD Backhoe Loader Bucket Tilt Cylinder Seal Kit 310A 310B 410 500C
$25.16
Time Remaining: 9h 21m
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1543291C1 Case Backhoe Loader 680L Dipper Arm Extention Cylinder Seal Kit
1543291C1 Case Backhoe Loader 680L Dipper Arm Extention Cylinder Seal Kit
$54.00
Time Remaining: 9h 28m
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1986856C2 New Case Backhoe 680L Stabilizer Cylinder Seal Kit
1986856C2 New Case Backhoe 680L Stabilizer Cylinder Seal Kit
$55.00
Time Remaining: 9h 32m
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1543268C1 Case Backhoe Loader Bucket Cylinder Seal Kit 480F 480F LL
1543268C1 Case Backhoe Loader Bucket Cylinder Seal Kit 480F 480F LL
$34.89
Time Remaining: 9h 48m
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AR105403 Backhoe Loader Boom Cylinder Seal Kit Early Fits John Deere 310
AR105403 Backhoe Loader Boom Cylinder Seal Kit Early Fits John Deere 310
$30.09
Time Remaining: 16h 36m
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2063628K Backhoe Boom Cylinder Seal Kit Fits Cat Caterpillar 416D
2063628K Backhoe Boom Cylinder Seal Kit Fits Cat Caterpillar 416D
$46.17
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1945583 Backhoe Boom Cylinder Seal Kit Fits Cat Caterpillar 416C
1945583 Backhoe Boom Cylinder Seal Kit Fits Cat Caterpillar 416C
$59.14
Time Remaining: 17h 35m
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2297194 Backhoe Stick Cylinder Seal Kit Fits Cat Caterpillar 416D
2297194 Backhoe Stick Cylinder Seal Kit Fits Cat Caterpillar 416D
$39.97
Time Remaining: 17h 35m
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2359829K Backhoe Arm Dipper Stick Cylinder Seal Kit Fits Cat Caterpillar 420D
2359829K Backhoe Arm Dipper Stick Cylinder Seal Kit Fits Cat Caterpillar 420D
$39.95
Time Remaining: 17h 52m
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2235945 Backhoe Bucket Cylinder Seal Kit Fits Cat Caterpillar 416D
2235945 Backhoe Bucket Cylinder Seal Kit Fits Cat Caterpillar 416D
$48.01
Time Remaining: 17h 53m
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1917846K Backhoe Boom Cylinder Seal Kit Fits Cat Caterpillar 420D
1917846K Backhoe Boom Cylinder Seal Kit Fits Cat Caterpillar 420D
$72.79
Time Remaining: 17h 54m
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1857686 Backhoe Swing Cylinder Seal Kit Fits Cat Caterpillar 416C
1857686 Backhoe Swing Cylinder Seal Kit Fits Cat Caterpillar 416C
$66.09
Time Remaining: 18h 12m
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7X2822 Various Cat Backhoe Loader Cylinder Seal Kits 426 428 436 438 Rod
7X2822 Various Cat Backhoe Loader Cylinder Seal Kits 426 428 436 438 Rod
$37.10
Time Remaining: 1d 3h 14m
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Backhoe Stabilizer Hyd Cylinder Seal Kit Caterpillar D3 Crawler Loader 8T1372
Backhoe Stabilizer Hyd Cylinder Seal Kit Caterpillar D3 Crawler Loader 8T1372
$55.26
Time Remaining: 1d 4h
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Backhoe Stabilizer Hyd Cylinder Seal Kit Caterpillar D3 Crawler Loader 2465914
Backhoe Stabilizer Hyd Cylinder Seal Kit Caterpillar D3 Crawler Loader 2465914
$87.88
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Backhoe Stabilizer Hyd Cylinder Seal Kit Caterpillar D3B Crawler Loader 2465914
Backhoe Stabilizer Hyd Cylinder Seal Kit Caterpillar D3B Crawler Loader 2465914
$87.88
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Backhoe Stabilizer Hyd Cylinder Seal Kit Caterpillar 931B Crawler Loader 8T1372
Backhoe Stabilizer Hyd Cylinder Seal Kit Caterpillar 931B Crawler Loader 8T1372
$55.26
Time Remaining: 1d 4h
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Backhoe Stabilizer Hyd Cylinder Seal Kit Caterpillar 931B Crawler Loader 2465914
Backhoe Stabilizer Hyd Cylinder Seal Kit Caterpillar 931B Crawler Loader 2465914
$87.88
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Backhoe Stabilizer Hyd Cylinder Seal Kit Caterpillar D3B Crawler Loader 8T1372
Backhoe Stabilizer Hyd Cylinder Seal Kit Caterpillar D3B Crawler Loader 8T1372
$87.88
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6661298 Bobcat Backhoe Stabilizer Cylinder Seal Kit 913 Rod 1 1 2
6661298 Bobcat Backhoe Stabilizer Cylinder Seal Kit 913 Rod 1 1 2
$24.93
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RE18758 John Deere Backhoe Bucket Cylinder Seal Kit 355D 455D E 544 A B 644 A +
RE18758 John Deere Backhoe Bucket Cylinder Seal Kit 355D 455D E 544 A B 644 A +
$69.99
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Late S N 310A 310B John Deere Backhoe Models Whole Machine Cylinder Seal Kits
Late S N 310A 310B John Deere Backhoe Models Whole Machine Cylinder Seal Kits
$625.00
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John Deere Backhoe Loader Bucket Cylinder Seal Kit for a 310C
John Deere Backhoe Loader Bucket Cylinder Seal Kit for a 310C
$98.00
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RE31716 Rod John Deere Backhoe Loader Boom Cylinder Seal Kit 310C AH149846 Bore
RE31716 Rod John Deere Backhoe Loader Boom Cylinder Seal Kit 310C AH149846 Bore
$151.00
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RE20595 Rod John Deere Backhoe Loader Boom Cylinder Seal Kit 310C AH149846 Bore
RE20595 Rod John Deere Backhoe Loader Boom Cylinder Seal Kit 310C AH149846 Bore
$136.00
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admin posted at 2011-6-19 Category: Heavy Equipment