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Jmdg is one kind of low speed high torque radial piston hydraulic motor. It can be widely applied in petroleum industry, chemical industry, mining, shipping, constructing machinery, especially for plastic injection molding machinery, hydraulic winch, transmission etc.

Technical data

Type

Displacement
Ml/r
Pressure
(mpa)
Torque
(n.M)

Speed range
(r/min)

Max cont power
(kw)

Weight
(kg)

Peak pressure

Cont pressure

Rate torque(n.M)

Theoric torque
(n.M/mpa)
Jmdg1-50
56
22
16
128
8
35-500
6
23
Jmdg1-63
64
22
16
150
9
35-500
7
23
Jmdg1-80
78
20
16
183
11
35-500
9
23
Jmdg1-100
96
20
16
225
14
35-500
11
23
Jmdg1-125
126
20
16
295
18
35-500
15
23
Jmdg1-160
159
20
14
326
23
35-500
16
23

101s series hydraulic steering control unit

1. The same function of the 101 series
2. Including integrated valve (relief valve and checkproof valve)
3. Replace danfoss (ospc), m+s (hku/4) series.
4.101s hydraulic steering unit is widely used in the steering control system
Such as the steering system of many kinds of industrial and agricultural
Mobile machinery forklift, loader, roadroller, tractor, comebine harvester, etc.
5.We produce the products match with the oem number of all machines.


ParametersSeries
101s
Function code1, 2, 41, 4
Displacement (ml/r)506380100125160200250280315400
Rated flow (l/min)5681012.5162025283240
Max.Input pressure(mpa)16
Relief valve pressure settings ( mpa)06, 07, 08, 10, 12, 14, 15, 16
Shock valve pressure settings ( mpa)12, 13, 14, 16, 18, 20, 21, 22
Max.Cont.Back pressure2.5
Weight(kg)5.755.815.895.966.16.36.56.736.917.17.5
Dimension l (mm)130132134137140145150156161166176


Hydraulic steering unit applications:
Construction machinery
Agriculture machinery
Heavy-duty equipment
Forestry machinery
Mining equipment

Hydraulic orbit motor bmh:


*advanced manufacturing devices for the gerolor gear set, which use low pressure of start-up, provide smooth, reliable operation and high efficiency.
*shaft seal can bear high pressure of back and the motor can be used in parallel or series.
*special design in the driver-linker and prolong operating life.
*special design for distribution system can meet the requirement of low noise of unit.
*compact volume and easy installation


Omh hydraulic motor main specifiction:
Type
Bmh
200
Bmh
250
Bmh
315
Bmh
400
Bmh
500
Displacement
(cc/rev)
203.2255.9316.5406.4489.2
Max torque
(n.M)
Cont510621740850830

Int439348282220184
Max pressure
(mpa)
Cont17.517.517.515.512.5

Int2020201916
Max speed rate
(rpm)
Cont366290236183155

Int439348282220184
Max flow
(l/min)
Cont7575757575

Int9090909090
Weight(kg)


10.51111.512.313.0

HYDRAULIC ORBIT MOTOR BMH:


ADVANCED MANUFACTURING DEVICES FOR THE GEROLOR GEAR SET, WHICH USE LOW PRESSURE OF START-UP,PROVIDE SMOOTH, RELIABLE OPERATION AND HIGH EFFICIENCY.
SHAFT SEAL CAN BEAR HIGH PRESSURE OF BACK AND THE MOTOR CAN BE USED IN PARALLEL OR SERIES.
SPECIAL DESIGN IN THE DRIVER-LINKER AND PROLONG OPERATING LIFE.
SPECIAL DESIGN FOR DISTRIBUTION SYSTEM CAN MEET THE REQUIREMENT OF LOW NOISE OF UNIT.
COMPACT VOLUME AND EASY INSTALLATION


OMH HYDRAULIC MOTOR MAIN SPECIFICTION:
TYPE,
BMH
200
BMH
250
BMH
315
BMH
400
BMH
500
DISPLACEMENT
(CC/REV)
203.2,255.9,316.5,406.4,489.2
MAX TORQUE
(N.M)
CONT,510,621,740,850,830

,INT,439,348,282,220,184
MAX PRESSURE
(MPA)
CONT,17.5,17.5,17.5,15.5,12.5

,INT,20,20,20,19,16
MAX SPEED RATE
(RPM)
CONT,366,290,236,183,155

,INT,439,348,282,220,184
MAX FLOW
(L/MIN)
CONT,75,75,75,75,75

,INT,90,90,90,90,90
WEIGHT(KG)


10.5,11,11.5,12.3,13.0

Zjm decelerator associated hydraulic motor is made up of planet gear decelerator and hydraulic motor. Small, stable at low speed, high performance and low price. Especially fit for small radial space, low speed and large torque needed working place.

Technical data

Type

Displacement
Ml/r

Max pressure
Mpa

Max torque
N.M

Speed
Range
(r/min)n

Ratio of
Gearbox

Associated
Motor

Weight
Kg
Mm
Length
Zjm1.03-730/b
728.6
11.5
1000
9-60
4.85
Bm4-160
40
425
Zjm1.03-920/b
921.3
13.6
1500
9-60
4.85
Bm4-200
40
429.5
Zjm1.03-1450/b
1456.8
11.5
2000
9-50
4.85
Bm4-320
40
442
Zjm1.03-1840/b
1842.6
13.7
3000
9-40
4.85
Bm4-400
40
451
Zjm1.06-2730/b
2731.3
12.3
4000
7-40
4.42
Bm5-630
100
465.5
Zjm1.06-3480/b
3481.1
12
5000
6-35
4.42
Bm5-800
100
479.5
Zjm1.06-4285/b
4284.4
11.7
6000
6-30
4.42
Bm5-985
100
494.5
Zjm600/c
580
20
1500
3-65
6
Jmdg2-100
45
350
Zjm900/c
940
20
2260
3-65
6
Jmdg2-150
45
350
Zjm1000/c
1050
20
2630
3-65
6
Jmdg2-175
45
350
Zjm1200/c
1200
20
3000
3-65
6
Jmdg2-200
45
350
Zjm1500/c
1520
25
4780
2-58
6
Jmdg3-250
85
345
Zjm1800/c
1730
20
4500
2-58
6
Jmdg3-300
85
345
Zjm2100/c
2100
20
5260
2-58
6
Jmdg3-350
85
345
Zjm4200/c
4258
14.8
8000
7-35
5.6
Jmdg6-750
-
497.5
Zjm6300/c
6307
15
12000
6-35
5.6
Jmdg8y-1100
-
502.5
Zjm7000/c
6900
20
17500
3-65
5
Jmdg16-1400
-
478
Zjm10000/c
10000
20
25400
3-45
5
Jmdg16-2000
-
478
Zjm12000/c
12000
16
24000
3-40
5
Jmdg16-2400
-
478

Jmdg is one kind of low speed high torque radial piston hydraulic motor. It can be widely applied in petroleum industry, chemical industry, mining, shipping, constructing machinery, especially for plastic injection molding machinery, hydraulic winch, transmission etc.

Technical data

Type

Displacement
Ml/r
Pressure
(mpa)
Torque
(n.M)

Speed range
(r/min)

Max cont power
(kw)

Weight
(kg)

Peak pressure

Cont pressure

Rate torque(n.M)

Theoric torque
(n.M/mpa)
Jmdg1-50
56
22
16
128
8
35-500
6
23
Jmdg1-63
64
22
16
150
9
35-500
7
23
Jmdg1-80
78
20
16
183
11
35-500
9
23
Jmdg1-100
96
20
16
225
14
35-500
11
23
Jmdg1-125
126
20
16
295
18
35-500
15
23
Jmdg1-160
159
20
14
326
23
35-500
16
23

Zjm decelerator associated hydraulic motor is made up of planet gear decelerator and hydraulic motor. Small, stable at low speed, high performance and low price. Especially fit for small radial space, low speed and large torque needed working place.

Technical data

Type

Displacement
Ml/r

Max pressure
Mpa

Max torque
N.M

Speed
Range
(r/min)n

Ratio of
Gearbox

Associated
Motor

Weight
Kg
Mm
Length
Zjm1.03-730/b
728.6
11.5
1000
9-60
4.85
Bm4-160
40
425
Zjm1.03-920/b
921.3
13.6
1500
9-60
4.85
Bm4-200
40
429.5
Zjm1.03-1450/b
1456.8
11.5
2000
9-50
4.85
Bm4-320
40
442
Zjm1.03-1840/b
1842.6
13.7
3000
9-40
4.85
Bm4-400
40
451
Zjm1.06-2730/b
2731.3
12.3
4000
7-40
4.42
Bm5-630
100
465.5
Zjm1.06-3480/b
3481.1
12
5000
6-35
4.42
Bm5-800
100
479.5
Zjm1.06-4285/b
4284.4
11.7
6000
6-30
4.42
Bm5-985
100
494.5
Zjm600/c
580
20
1500
3-65
6
Jmdg2-100
45
350
Zjm900/c
940
20
2260
3-65
6
Jmdg2-150
45
350
Zjm1000/c
1050
20
2630
3-65
6
Jmdg2-175
45
350
Zjm1200/c
1200
20
3000
3-65
6
Jmdg2-200
45
350
Zjm1500/c
1520
25
4780
2-58
6
Jmdg3-250
85
345
Zjm1800/c
1730
20
4500
2-58
6
Jmdg3-300
85
345
Zjm2100/c
2100
20
5260
2-58
6
Jmdg3-350
85
345
Zjm4200/c
4258
14.8
8000
7-35
5.6
Jmdg6-750
-
497.5
Zjm6300/c
6307
15
12000
6-35
5.6
Jmdg8y-1100
-
502.5
Zjm7000/c
6900
20
17500
3-65
5
Jmdg16-1400
-
478
Zjm10000/c
10000
20
25400
3-45
5
Jmdg16-2000
-
478
Zjm12000/c
12000
16
24000
3-40
5
Jmdg16-2400
-
478

JMDG is one kind of low speed high torque radial piston hydraulic motor. It can be widely applied in petroleum industry, chemical industry,mining, shipping, constructing machinery, especially for plastic injection molding machinery, hydraulic winch, transmission etc.

Technical Data

TYPE

Displacement
ml/r
Pressure
(Mpa)
Torque
(N.m)

Speed range
(r/min)

Max cont power
(KW)

Weight
(kg)

Peak pressure

Cont pressure

Rate torque(N.m)

Theoric torque
(N.m/MPa)
JMDG1-50
56
22
16
128
8
35-500
6
23
JMDG1-63
64
22
16
150
9
35-500
7
23
JMDG1-80
78
20
16
183
11
35-500
9
23
JMDG1-100
96
20
16
225
14
35-500
11
23
JMDG1-125
126
20
16
295
18
35-500
15
23
JMDG1-160
159
20
14
326
23
35-500
16
23

101S series hydraulic steering control unit

1. The same function of the 101 series
2. Including integrated valve (relief valve and checkproof valve)
3. Replace Danfoss (ospc), M+S (HKU/4) series.
4.101S Hydraulic steering unit is widely used in the steering control system
such as the steering system of many kinds of industrial and agricultural
mobile machinery forklift,loader,roadroller,tractor,comebine harvester, etc.
5.We produce the products match with the OEM number of all machines.


Parameters,Series
101S-*-***-**-*
Function code,1,2,4,1,4
Displacement (mL/r),50,63,80,100,125,160,200,250,280,315,400
Rated Flow (L/min),5,6,8,10,12.5,16,20,25,28,32,40
Max.input pressure(Mpa),16
Relief Valve Pressure Settings ( MPa),06,07,08,10,12,14,15,16
Shock Valve Pressure Settings ( MPa),12,13,14,16,18,20,21,22
Max.cont.back pressure,2.5
Weight(kg),5.75,5.81,5.89,5.96,6.1,6.3,6.5,6.73,6.91,7.1,7.5
Dimension L (mm),130,132,134,137,140,145,150,156,161,166,176


Hydraulic steering unit applications:
Construction Machinery
Agriculture Machinery
Heavy-Duty Equipment
Forestry Machinery
Mining Equipment

Zjm decelerator associated hydraulic motor is made up of planet gear decelerator and hydraulic motor. Small, stable at low speed, high performance and low price. Especially fit for small radial space, low speed and large torque needed working place.

Technical data

Type

Displacement
Ml/r

Max pressure
Mpa

Max torque
N.M

Speed
Range
(r/min)n

Ratio of
Gearbox

Associated
Motor

Weight
Kg
Mm
Length
Zjm1.03-730/b
728.6
11.5
1000
9-60
4.85
Bm4-160
40
425
Zjm1.03-920/b
921.3
13.6
1500
9-60
4.85
Bm4-200
40
429.5
Zjm1.03-1450/b
1456.8
11.5
2000
9-50
4.85
Bm4-320
40
442
Zjm1.03-1840/b
1842.6
13.7
3000
9-40
4.85
Bm4-400
40
451
Zjm1.06-2730/b
2731.3
12.3
4000
7-40
4.42
Bm5-630
100
465.5
Zjm1.06-3480/b
3481.1
12
5000
6-35
4.42
Bm5-800
100
479.5
Zjm1.06-4285/b
4284.4
11.7
6000
6-30
4.42
Bm5-985
100
494.5
Zjm600/c
580
20
1500
3-65
6
Jmdg2-100
45
350
Zjm900/c
940
20
2260
3-65
6
Jmdg2-150
45
350
Zjm1000/c
1050
20
2630
3-65
6
Jmdg2-175
45
350
Zjm1200/c
1200
20
3000
3-65
6
Jmdg2-200
45
350
Zjm1500/c
1520
25
4780
2-58
6
Jmdg3-250
85
345
Zjm1800/c
1730
20
4500
2-58
6
Jmdg3-300
85
345
Zjm2100/c
2100
20
5260
2-58
6
Jmdg3-350
85
345
Zjm4200/c
4258
14.8
8000
7-35
5.6
Jmdg6-750
-
497.5
Zjm6300/c
6307
15
12000
6-35
5.6
Jmdg8y-1100
-
502.5
Zjm7000/c
6900
20
17500
3-65
5
Jmdg16-1400
-
478
Zjm10000/c
10000
20
25400
3-45
5
Jmdg16-2000
-
478
Zjm12000/c
12000
16
24000
3-40
5
Jmdg16-2400
-
478

JMDG is one kind of low speed high torque radial piston hydraulic motor. It can be widely applied in petroleum industry, chemical industry,mining, shipping, constructing machinery, especially for plastic injection molding machinery, hydraulic winch, transmission etc.

Technical Data

TYPE

Displacement
ml/r
Pressure
(Mpa)
Torque
(N.m)

Speed range
(r/min)

Max cont power
(KW)

Weight
(kg)

Peak pressure
,
Cont pressure

Rate torque(N.m)

Theoric torque
(N.m/MPa)
JMDG1-50
56
22
16
128
8
35-500
6
23
JMDG1-63
64
22
16
150
9
35-500
7
23
JMDG1-80
78
20
16
183
11
35-500
9
23
JMDG1-100
96
20
16
225
14
35-500
11
23
JMDG1-125
126
20
16
295
18
35-500
15
23
JMDG1-160
159
20
14
326
23
35-500
16
23

101S series hydraulic steering control unit

1. The same function of the 101 series
2. Including integrated valve (relief valve and checkproof valve)
3. Replace Danfoss (ospc), M+S (HKU/4) series.
4.101S Hydraulic steering unit is widely used in the steering control system
such as the steering system of many kinds of industrial and agricultural
mobile machinery forklift,loader,roadroller,tractor,comebine harvester, etc.
5.We produce the products match with the OEM number of all machines.


ParametersSeries
101S-*-***-**-*
Function code1,2,41,4
Displacement (mL/r)506380100125160200250280315400
Rated Flow (L/min)5681012.5162025283240
Max.input pressure(Mpa)16
Relief Valve Pressure Settings ( MPa)06,07,08,10,12,14,15,16
Shock Valve Pressure Settings ( MPa)12,13,14,16,18,20,21,22
Max.cont.back pressure2.5
Weight(kg)5.755.815.895.966.16.36.56.736.917.17.5
Dimension L (mm)130132134137140145150156161166176


Hydraulic steering unit applications:
Construction Machinery
Agriculture Machinery
Heavy-Duty Equipment
Forestry Machinery
Mining Equipment

Hydraulic jar (up / down) designed to use accelerator and flow sub form a coiled tubing short heavy string. The Jar delay device let the energy stored in the stretched and elongated string accelerator, when the energy released will have a great impact, generating shock effect, loose card tool stuck.



Up jarring
Lowering drill string to make drilling jar closed completely (in locking position), elevating drill string by the order of small tonnage to larger tonnage, which make spring and hydraulic cylinder delay, when mandrel move to a position and become release resistance, the spring force stored in drill string will transfer to upforward energy and up jarring. Repeating the above several times can force tool to produce continues up jarring.

Down jarring
Move up and down the drill string to make drilling jar closed completely (in locking position), lowering drill string to make spring compressed and stored energy. When pressure of jar is larger than the desired lower unlocking force, grapple will slide out from mandrel to release the locking and make down jarring. Repeating the above several times can force tool to produce continues down jarring.

This is Hanjiu Hydraulic from Shijiazhuang Hanjiu Technology Co.,Ltd,we mainly produce Hydraulic orbitrol steering. Our orbitrol steering can widely used for kinds of Agricultural equipments like:Agricultural harvesters,tractors for John Deere,New Holland,Case,Class,JCB etc. Our Hydraulic steering unit can replace Danfoss,Eaton,M+S,Parker,White series 1. Our Hydraulic orbitrol steering can replace Danfoss,Eaton,M+S,Parker,White seriesGood day for you. Displacement: 80/100/125/160/200/400/500/630/800/1000 cc

101S series hydraulic steering control unit

1. The same function of the 101 series
2. Including integrated valve (relief valve and checkproof valve)
3. Replace Danfoss (ospc), M+S (HKU/4) series.
4.101S Hydraulic steering unit is widely used in the steering control system
such as the steering system of many kinds of industrial and agricultural
mobile machinery forklift,loader,roadroller,tractor,comebine harvester, etc.
5.We produce the products match with the OEM number of all machines.




Parameters Series
101S-*-***-**-*
Function code 1,2,4 1,4
Displacement (mL/r) 50 63 80 100 125 160 200 250 280 315 400
Rated Flow (L/min) 5 6 8 10 12.5 16 20 25 28 32 40
Max.input pressure(Mpa) 16
Relief Valve Pressure Settings ( MPa) 06,07,08,10,12,14,15,16
Shock Valve Pressure Settings ( MPa) 12,13,14,16,18,20,21,22
Max.cont.back pressure 2.5
Weight(kg) 5.75 5.81 5.89 5.96 6.1 6.3 6.5 6.73 6.91 7.1 7.5
Dimension L (mm) 130 132 134 137 140 145 150 156 161 166 176


Hydraulic steering unit applications:
Construction Machinery
Agriculture Machinery
Heavy-Duty Equipment
Forestry Machinery
Mining Equipment

Hydraulic Orbit Motor BMH:


*Advanced manufacturing devices for the Gerolor gear set, which use low pressure of start-up,provide smooth, reliable operation and high efficiency.
*Shaft seal can bear high pressure of back and the motor can be used in parallel or series.
*Special design in the driver-linker and prolong operating life.
*Special design for distribution system can meet the requirement of low noise of unit.
*Compact volume and easy installation


OMH hydraulic motor Main specifiction:
Type
BMH
200
BMH
250
BMH
315
BMH
400
BMH
500
Displacement
(cc/rev)
203.2255.9316.5406.4489.2
Max torque
(n.m)
cont510621740850830

int439348282220184
Max pressure
(mpa)
cont17.517.517.515.512.5

int2020201916
Max speed rate
(rpm)
cont366290236183155

int439348282220184
Max flow
(L/min)
cont7575757575

int9090909090
Weight(kg)


10.51111.512.313.0

101s series hydraulic steering control unit

1. The same function of the 101 series
2. Including integrated valve (relief valve and checkproof valve)
3. Replace danfoss (ospc), m+s (hku/4) series.
4.101s hydraulic steering unit is widely used in the steering control system
Such as the steering system of many kinds of industrial and agricultural
Mobile machinery forklift, loader, roadroller, tractor, comebine harvester, etc.
5.We produce the products match with the oem number of all machines.


Parameters, series
101s-
Function code, 1, 2, 4, 1, 4
Displacement (ml/r), 50, 63, 80, 100, 125, 160, 200, 250, 280, 315, 400
Rated flow (l/min), 5, 6, 8, 10, 12.5, 16, 20, 25, 28, 32, 40
Max.Input pressure(mpa), 16
Relief valve pressure settings ( mpa), 06, 07, 08, 10, 12, 14, 15, 16
Shock valve pressure settings ( mpa), 12, 13, 14, 16, 18, 20, 21, 22
Max.Cont.Back pressure, 2.5
Weight(kg), 5.75, 5.81, 5.89, 5.96, 6.1, 6.3, 6.5, 6.73, 6.91, 7.1, 7.5
Dimension l (mm), 130, 132, 134, 137, 140, 145, 150, 156, 161, 166, 176


Hydraulic steering unit applications:
Construction machinery
Agriculture machinery
Heavy-duty equipment
Forestry machinery
Mining equipment

This is Hanjiu Hydraulic from Shijiazhuang Hanjiu Technology Co.,Ltd,we mainly produce Hydraulic orbitrol steering. Our orbitrol steering can widely used for kinds of Agricultural equipments like:Agricultural harvesters,tractors for John Deere,New Holland,Case,Class,JCB etc. Our Hydraulic steering unit can replace Danfoss,Eaton,M+S,Parker,White series 1. Our Hydraulic orbitrol steering can replace Danfoss,Eaton,M+S,Parker,White seriesGood day for you. Displacement: 80/100/125/160/200/400/500/630/800/1000 cc

101S series hydraulic steering control unit

1. The same function of the 101 series
2. Including integrated valve (relief valve and checkproof valve)
3. Replace Danfoss (ospc), M+S (HKU/4) series.
4.101S Hydraulic steering unit is widely used in the steering control system
such as the steering system of many kinds of industrial and agricultural
mobile machinery forklift,loader,roadroller,tractor,comebine harvester, etc.
5.We produce the products match with the OEM number of all machines.


ParametersSeries
101S-*-***-**-*
Function code1,2,41,4
Displacement (mL/r)506380100125160200250280315400
Rated Flow (L/min)5681012.5162025283240
Max.input pressure(Mpa)16
Relief Valve Pressure Settings ( MPa)06,07,08,10,12,14,15,16
Shock Valve Pressure Settings ( MPa)12,13,14,16,18,20,21,22
Max.cont.back pressure2.5
Weight(kg)5.755.815.895.966.16.36.56.736.917.17.5
Dimension L (mm)130132134137140145150156161166176


Hydraulic steering unit applications:
Construction Machinery
Agriculture Machinery
Heavy-Duty Equipment
Forestry Machinery
Mining Equipment

It is hdraulically set by applying pressure through the run-in string. A setting ball is circulated or dropped to a ball seat built into the landing collar.Applied pressure acts on the internal piston and moves slips up the cone to the set position.

Features:
1The DYX-C is to be set hydraulicall,which is designed for applications in all types of wells.
2Working with SQ setting-ball carrier,the DYX-C is suitable for applications in horizontal or highly-deviated wells.
3The piston sealing element is made of nitrile/fluorine rubber for high pressure and temperature ratings.
4Main parts are fabricated with high-strength alloy steel providing high burst/collapse resistance.



Specification,mm,244.5 X �¦177.8mm/�¦139.7mm,177.8 X �¦127mm/�¦114.3mm
Rated Load,t,120,50
Sealing Capacity,MPa,25,25
Shearing Pressure of Pins in Cylinder,MPa,7~8,7~8
Casing Wall Thickness,mm,10.03,9.19
,11.05,10.36
,11.99,11.51
Casing Weight,KG/m,59.52,38.69
,64.73,43.15
,69.94,47.62
Body Max O.D.,mm,215,152
Body Min I.D.,mm,155,108

Scrap baling press can be used to compress and pack all kinds of soft materials, such as cotton, wool, waste carton, waste paper board, yarn, plastic, cloth, woven bag, knitting wool, waste plastic bag, etc.It is a good equipment for improving labor efficiency, reducing labor intensity, saving manpower and reducing transportation costs.

Model XQ28/2.6 hydraulic power tong is an improved type of XYQ1.8 which is used to make up and break out sucker rod thread in Well Service. This product has the following features:

A. The structure is compact ,concise and light.Master tong is driven by low speed large torque hydraulic motor which matching with manual control valve. The backup tong just like a spanner. Total weight is approximately equal to XYQ1.8.

B. The operating is briefness and convenience with high efficiency. Put the respondence size jaw set into master tong and the respondence size glutting into backup tong , turning the reset knob in correct direction then can make up and break out sucker rod by operating manual control valve. Two speed,snapping at low speed, spinning at high speed .

C. Large low gear torque, especially suitable for the instance that is difficult to break out sucker rod thread.