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.

235916A1 New Case Backhoe Bucket Cylinder Assembly 580K 580SK 580SL 580SM
235916A1 New Case Backhoe Bucket Cylinder Assembly 580K 580SK 580SL 580SM
$951.00
Time Remaining: 7h 55m
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CAT 426 Loader Backhoe Right Linkage from Center Cylinder to Loader Bucket
CAT 426 Loader Backhoe Right Linkage from Center Cylinder to Loader Bucket
$150.00
Time Remaining: 8h 33m
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CAT 426 Loader Backhoe Left Linkage from Center Cylinder to Loader Bucket
CAT 426 Loader Backhoe Left Linkage from Center Cylinder to Loader Bucket
$150.00
Time Remaining: 8h 35m
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CAT 426 Loader Backhoe Guide Link Loader Boom to Bucket Cylinder  9R5063
CAT 426 Loader Backhoe Guide Link Loader Boom to Bucket Cylinder 9R5063
$125.00
Time Remaining: 8h 39m
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CAT 426 Loader Backhoe Stabilizer Outrigger w Pad OEM 9R4605 Less Cylinder
CAT 426 Loader Backhoe Stabilizer Outrigger w Pad OEM 9R4605 Less Cylinder
$275.00
Time Remaining: 9h 12m
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CAT 426 Loader Backhoe Right Stabilizer Outrigger Cylinder OEM 9T7069
CAT 426 Loader Backhoe Right Stabilizer Outrigger Cylinder OEM 9T7069
$350.00
Time Remaining: 9h 17m
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FP410 Backhoe Stab Cylinder Seal Kit Fits Ford 755B
FP410 Backhoe Stab Cylinder Seal Kit Fits Ford 755B
$59.02
Time Remaining: 9h 37m
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FP454 Backhoe Lift Cylinder Seal Kit Fits Ford 455C 455D 555C 555D
FP454 Backhoe Lift Cylinder Seal Kit Fits Ford 455C 455D 555C 555D
$69.45
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FP456 Backhoe Bucket Cylinder Seal Kit Fits Ford 455C 455D 555C 555D 575D 655C
FP456 Backhoe Bucket Cylinder Seal Kit Fits Ford 455C 455D 555C 555D 575D 655C
$40.81
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FP458 Backhoe Stabilizer Cylinder Seal Kit Fits Ford 455C 455D 555C 555D 575D
FP458 Backhoe Stabilizer Cylinder Seal Kit Fits Ford 455C 455D 555C 555D 575D
$50.80
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86516202 Ford Backhoe Steering Cylinder 550 555 555A
86516202 Ford Backhoe Steering Cylinder 550 555 555A
$396.99
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CAT 426 Loader Backhoe Main Boom Lift Cylinder OEM 9T5221
CAT 426 Loader Backhoe Main Boom Lift Cylinder OEM 9T5221
$475.00
Time Remaining: 10h
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CAT 426 Loader Backhoe Stick Cylinder OEM 9T5217
CAT 426 Loader Backhoe Stick Cylinder OEM 9T5217
$650.00
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580B 580C 580D 580SD 580E 580SE New Case Backhoe Dipper Cylinder G106682
580B 580C 580D 580SD 580E 580SE New Case Backhoe Dipper Cylinder G106682
$705.07
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G109470 Backhoe Bucket Cylinder Seal Kit Fits Case 480C W14
G109470 Backhoe Bucket Cylinder Seal Kit Fits Case 480C W14
$25.35
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G109504 Backhoe Bucket Cylinder Seal Kit Fits Case 480D 580D 580SD 580SE 850C
G109504 Backhoe Bucket Cylinder Seal Kit Fits Case 480D 580D 580SD 580SE 850C
$29.28
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G32293 Backhoe Dipper Bucket Cylinder Seal Kit Fits Case 480 480B 580 310G W9
G32293 Backhoe Dipper Bucket Cylinder Seal Kit Fits Case 480 480B 580 310G W9
$18.51
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CAT 426 Loader Backhoe Stick Bucket Cylinder Core Only Bent
CAT 426 Loader Backhoe Stick Bucket Cylinder Core Only Bent
$150.00
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D52522 New Case Backhoe Loader 580B 580C 580D 580E Dipper Cylinder Pin
D52522 New Case Backhoe Loader 580B 580C 580D 580E Dipper Cylinder Pin
$35.53
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New Case Backhoe 680B Bucket Cylinder Seal Kit 4 Bore 225 Rod G34636
New Case Backhoe 680B Bucket Cylinder Seal Kit 4 Bore 225 Rod G34636
$33.40
Time Remaining: 10h 16m
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C5NN3N713A Ford New Holland Backhoe Steering Cylinder Seal Kit 555 555A 555B
C5NN3N713A Ford New Holland Backhoe Steering Cylinder Seal Kit 555 555A 555B
$29.96
Time Remaining: 10h 59m
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G32695 Backhoe Swing Cylinder Seal Kit Fits Case 680B 680C 850 1150
G32695 Backhoe Swing Cylinder Seal Kit Fits Case 680B 680C 850 1150
$36.50
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G34626 Backhoe Swing Dozer Ripper Cylinder Seal Kit Fits Case 580F 850 34 36
G34626 Backhoe Swing Dozer Ripper Cylinder Seal Kit Fits Case 580F 850 34 36
$24.89
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G34827 Backhoe Boom Cylinder Seal Kit Fits Case 680E
G34827 Backhoe Boom Cylinder Seal Kit Fits Case 680E
$27.70
Time Remaining: 11h 13m
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Case Extendable Dipper Cylinder G106708 Repacked 580K Loader Backhoe
Case Extendable Dipper Cylinder G106708 Repacked 580K Loader Backhoe
$625.00
Time Remaining: 11h 59m
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AM36221 New John Deere Backhoe Stabilizer Cylinder Seal Kit 7 Rod
AM36221 New John Deere Backhoe Stabilizer Cylinder Seal Kit 7 Rod
$15.63
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309970 Ford Backhoe Loader Bucket Cylinder Seal Kit 755 755A 5500 5550 7500
309970 Ford Backhoe Loader Bucket Cylinder Seal Kit 755 755A 5500 5550 7500
$56.30
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6E0275 Backhoe Bucket Cylinder Assembly Fits Cat Caterpillar 416B 416C
6E0275 Backhoe Bucket Cylinder Assembly Fits Cat Caterpillar 416B 416C
$1,068.00
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G101256 Backhoe Boom Cylinder Assembly fits Case 680E 680G 680H 680K 680L
G101256 Backhoe Boom Cylinder Assembly fits Case 680E 680G 680H 680K 680L
$1,173.99
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109 7020 Backhoe Arm Crowd Dipper Cylinder Fits Cat Caterpillar 416B 416C
109 7020 Backhoe Arm Crowd Dipper Cylinder Fits Cat Caterpillar 416B 416C
$1,218.38
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G102835 Backhoe Boom Cylinder Assembly fits Case 480D 480E
G102835 Backhoe Boom Cylinder Assembly fits Case 480D 480E
$890.39
Time Remaining: 22h 7m
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SWING CYLINDER RETAINER PLATE FOR MASSEY FERGUSON 52A 54A BACKHOE
SWING CYLINDER RETAINER PLATE FOR MASSEY FERGUSON 52A 54A BACKHOE
$74.99
Time Remaining: 1d 7h
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Seal Kit for New Holland 555E Backhoe Stabilizer Cylinder
Seal Kit for New Holland 555E Backhoe Stabilizer Cylinder
$44.99
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836633M91 SEAL KIT FOR MASSEY FERGUSON BACKHOE STABILIZER CYLINDER
836633M91 SEAL KIT FOR MASSEY FERGUSON BACKHOE STABILIZER CYLINDER
$49.95
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Swing Hydraulic Cylinder Seal Kit Ford Backhoe 340A 251303
Swing Hydraulic Cylinder Seal Kit Ford Backhoe 340A 251303
$69.99
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Swing Hydraulic Cylinder Seal Kit Ford Backhoe 540A 251303
Swing Hydraulic Cylinder Seal Kit Ford Backhoe 540A 251303
$69.99
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G105547 Case Backhoe Boom Cylinder Seal Kit 450 450B 450C 455B 455C 850 W30 +
G105547 Case Backhoe Boom Cylinder Seal Kit 450 450B 450C 455B 455C 850 W30 +
$20.63
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Swing Hydraulic Cylinder Seal Kit Ford Backhoe 340B 251303
Swing Hydraulic Cylinder Seal Kit Ford Backhoe 340B 251303
$69.99
Time Remaining: 1d 8h 39m
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Swing Hydraulic Cylinder Seal Kit Ford Backhoe 540B 251303
Swing Hydraulic Cylinder Seal Kit Ford Backhoe 540B 251303
$69.99
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Swing Hydraulic Cylinder Seal Kit Ford Backhoe 445 251303
Swing Hydraulic Cylinder Seal Kit Ford Backhoe 445 251303
$69.99
Time Remaining: 1d 8h 45m
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309979 New Ford Backhoe Loader Bucket Cylinder Seal Kit A66 Rod
309979 New Ford Backhoe Loader Bucket Cylinder Seal Kit A66 Rod
$88.45
Time Remaining: 1d 9h 7m
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Whole Machine Cylinder kit for Case 580CK Backhoe Model 33
Whole Machine Cylinder kit for Case 580CK Backhoe Model 33
$399.00
Time Remaining: 1d 10h 20m
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991 00152 JCB Backhoe Loader Stabilizer  Swing Cylinder Seal Kit 214 SM 4 +
991 00152 JCB Backhoe Loader Stabilizer Swing Cylinder Seal Kit 214 SM 4 +
$30.20
Time Remaining: 1d 10h 24m
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Hydraulic Seal Kit for Case 580D Backhoe Stick Cylinder
Hydraulic Seal Kit for Case 580D Backhoe Stick Cylinder
$45.99
Time Remaining: 1d 10h 26m
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85802570 Backhoe Swing Cylinder Seal Kit Fits Ford 555E 575E 655E 675E
85802570 Backhoe Swing Cylinder Seal Kit Fits Ford 555E 575E 655E 675E
$33.10
Time Remaining: 1d 10h 46m
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NEW Set of 2 Case Backhoe Swing Cylinder to Swing Tower Pin D88985 7 1 8 long
NEW Set of 2 Case Backhoe Swing Cylinder to Swing Tower Pin D88985 7 1 8 long
$25.00
Time Remaining: 1d 11h 24m
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RE16076 New John Deere Backhoe Bucket Cylinder Seal Kit 410B 415B 510B 515B 610B
RE16076 New John Deere Backhoe Bucket Cylinder Seal Kit 410B 415B 510B 515B 610B
$39.13
Time Remaining: 1d 11h 50m
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JOHN DEERE AH157979 310e310g310j310k BACKHOE CROWD HYDRAULIC CYLINDER ROD
JOHN DEERE AH157979 310e310g310j310k BACKHOE CROWD HYDRAULIC CYLINDER ROD
$356.25
Time Remaining: 1d 13h 1m
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G110046 Backhoe Bucket Cylinder Seal Kit Fits Case 580K 580SK
G110046 Backhoe Bucket Cylinder Seal Kit Fits Case 580K 580SK
$19.80
Time Remaining: 1d 14h 58m
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G110053 Backhoe Swing Loader Boom Lift Cylinder Seal Kit Fits Case 580K
G110053 Backhoe Swing Loader Boom Lift Cylinder Seal Kit Fits Case 580K
$18.85
Time Remaining: 1d 14h 58m
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G105528 Backhoe Boom Cylinder Seal Kit Fits Case 580B 580C 580F 450 450B 450C
G105528 Backhoe Boom Cylinder Seal Kit Fits Case 580B 580C 580F 450 450B 450C
$26.31
Time Remaining: 1d 21h 10m
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G109434 Bucket Cylinder Assembly Fits Case Backhoe 580B 580C 580D 580E
G109434 Bucket Cylinder Assembly Fits Case Backhoe 580B 580C 580D 580E
$719.16
Time Remaining: 1d 22h 46m
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Swing Hydraulic Cylinder Seal Kit Ford Backhoe 445A 251303
Swing Hydraulic Cylinder Seal Kit Ford Backhoe 445A 251303
$69.99
Time Remaining: 2d 5h 35m
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Swing Hydraulic Cylinder Seal Kit Ford Backhoe 450 251303
Swing Hydraulic Cylinder Seal Kit Ford Backhoe 450 251303
$69.99
Time Remaining: 2d 5h 38m
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Swing Hydraulic Cylinder Seal Kit Ford Backhoe 455 251303
Swing Hydraulic Cylinder Seal Kit Ford Backhoe 455 251303
$69.99
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Swing Hydraulic Cylinder Seal Kit Ford Backhoe 545 251303
Swing Hydraulic Cylinder Seal Kit Ford Backhoe 545 251303
$69.99
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Swing Hydraulic Cylinder Seal Kit Ford Backhoe 545A 251303
Swing Hydraulic Cylinder Seal Kit Ford Backhoe 545A 251303
$69.99
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Swing Hydraulic Cylinder Seal Kit Ford Backhoe 755B 251303
Swing Hydraulic Cylinder Seal Kit Ford Backhoe 755B 251303
$69.99
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Swing Hydraulic Cylinder Seal Kit Ford Backhoe 555 251303
Swing Hydraulic Cylinder Seal Kit Ford Backhoe 555 251303
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Swing Hydraulic Cylinder Seal Kit Ford Backhoe 555A 251303
Swing Hydraulic Cylinder Seal Kit Ford Backhoe 555A 251303
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Swing Hydraulic Cylinder Seal Kit Ford Backhoe 555B 251303
Swing Hydraulic Cylinder Seal Kit Ford Backhoe 555B 251303
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Swing Hydraulic Cylinder Seal Kit Ford Backhoe 655 251303
Swing Hydraulic Cylinder Seal Kit Ford Backhoe 655 251303
$69.99
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Swing Hydraulic Cylinder Seal Kit Ford Backhoe 655A 251303
Swing Hydraulic Cylinder Seal Kit Ford Backhoe 655A 251303
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G105528 New Case Backhoe Boom Cylinder Seal Kit 450 450B 450C 580B 580C 580F +
G105528 New Case Backhoe Boom Cylinder Seal Kit 450 450B 450C 580B 580C 580F +
$26.26
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85819350 Backhoe Arm Crowd Stick Cylinder Seal Kit Fits New Holland LB75
85819350 Backhoe Arm Crowd Stick Cylinder Seal Kit Fits New Holland LB75
$72.40
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87633295 Backhoe Arm Crowd Stick Cylinder Seal Kit Fits New Holland B95 LB75
87633295 Backhoe Arm Crowd Stick Cylinder Seal Kit Fits New Holland B95 LB75
$74.52
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2350352 New Cat Backhoe Loader Steering Cylinder Seal Kit 416D 420D Rod
2350352 New Cat Backhoe Loader Steering Cylinder Seal Kit 416D 420D Rod
$46.67
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87428633 Backhoe Lift Cylinder Seal Kit Fits New Holland B95 LB75 LB75B
87428633 Backhoe Lift Cylinder Seal Kit Fits New Holland B95 LB75 LB75B
$84.14
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878000490 Komatsu Backhoe Loader Arm Cylinder Seal Kit WB140 2 WB150 2N +
878000490 Komatsu Backhoe Loader Arm Cylinder Seal Kit WB140 2 WB150 2N +
$59.76
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177256A1  177257A1 New Case Backhoe RH LH Stabilizer Cylinder 590 590SL 590SM
177256A1 177257A1 New Case Backhoe RH LH Stabilizer Cylinder 590 590SL 590SM
$1,232.27
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251072 New Ford Backhoe Loader Bucket Cylinder Seal Kit 445 445A 450 545 545A
251072 New Ford Backhoe Loader Bucket Cylinder Seal Kit 445 445A 450 545 545A
$18.57
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AH149814 John Deere Backhoe Loader Cylinder Seal Kit 310C 444H 700H 850C 1810C
AH149814 John Deere Backhoe Loader Cylinder Seal Kit 310C 444H 700H 850C 1810C
$26.03
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309963 New Ford Backhoe Cylinder Seal Kit 750 755 7500 5500 5550 A66
309963 New Ford Backhoe Cylinder Seal Kit 750 755 7500 5500 5550 A66
$81.99
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1607677M91 New Massey Ferguson Backhoe Bucket Cylinder Seal Kit 54A Rod
1607677M91 New Massey Ferguson Backhoe Bucket Cylinder Seal Kit 54A Rod
$135.66
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123732A1 New Case 580SL  580SM Backhoe Loader Stabilizer Cylinder Piston
123732A1 New Case 580SL 580SM Backhoe Loader Stabilizer Cylinder Piston
$99.64
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Case backhoe door spring 580SE 580K 580SK 580L 580SL 590SL cylinder 278326A1
Case backhoe door spring 580SE 580K 580SK 580L 580SL 590SL cylinder 278326A1
$38.00
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admin posted at 2011-6-19 Category: Heavy Equipment