JU-36 Performance

The closed loop hydraulic system of the JU-36 is ideally suited for load lowering and load positioning.  The operator directly controls the amount of fluid flowing from the hydraulic pump and therefore the speed of the hoist from the hydraulic joystick.  The hydraulic motor automatically selects the maximum speed that it can operate based on the load that is being raised or lowered.  This feature allows the hoist to use the full horsepower of the diesel engine and therefore maximizing efficiency.  Equal performance is delivered for raising or lowering loads.  The hydraulic oil is cooled by a generously sized shell and tube heat exchanger that is plumbed into the diesel cooling circuit.  The following tables show the winch performance.  The first table shows the maximum line pull and associated speed for that line pull at each layer.  The second table shows the maximum line speed and the associated line pull at that speed at each layer.  The data was calculated using 1.5" wire rope.

1.5" Wire Rope

Preformance @ Maximum Line Pull

Layer

P.D. (in)

Single Line Pull (lbs)

Single Line Speed (fpm)

1

19.50

103,763

21.6

2

22.06

91,722

24.5

3

24.62

82,185

27.3

4

27.18

74,444

30.1

5

29.74

68,036

33.0

6

32.30

62,644

35.8

7

34.87

58,027

38.7

8

37.43

54,058

41.5

9

39.99

50,597

44.4

10

42.55

47,553

47.2

11

45.11

44,855

50.0

12

47.67

42,446

52.9

Preformance @ Maximum Line Pull

Layer

P.D. (in)

Single Line Pull (lbs)

Single Line Speed (fpm)

1

19.50

31,321

63.4

2

22.06

27,686

71.7

3

24.62

24,807

80.0

4

27.18

22,471

88.3

5

29.74

20,537

96.7

6

32.30

18,909

105.0

7

34.87

17,515

113.3

8

37.43

16,317

121.7

9

39.99

15,273

130.0

10

42.55

14,354

138.3

11

45.11

13,539

146.6

12

47.67

12,812

154.9