Tokimec SQP Vane Pump Series Model and Parameter Overview
Tokimec (Tokyo Keiki) SQP series is a low-noise fixed cartridge vane pump, available in three structural types: single-stage, double-stage and triple-stage. It includes 4 frame sizes, 16 series and 31 models with different displacements, widely applied in low-noise hydraulic systems of plastic machinery, die-casting machinery, machine tools and construction machinery.
1. Model Coding Rules
1.1 Single-Stage Pump Model Format
(F3)-SQP(S)3-35-86C(2)-(LH)-18
|
Position
|
Meaning
|
Description
|
|
1
|
Hydraulic Oil Type
|
No mark: Petroleum-based oil F3: Phosphate ester oil F11: Water-glycol oil
|
|
2
|
Pump Type
|
SQP: Standard type SQPS: Special port type
|
|
3
|
Frame Size
|
1, 2, 3, 4
|
|
4
|
Displacement Code
|
Corresponds to different displacement values
|
|
5
|
Shaft End Type
|
86: Parallel square key
|
|
6
|
Oil Outlet Position
|
A: Opposite to oil inlet B: 90° counterclockwise from oil inlet C: Same direction as oil inlet D: 90° clockwise from oil inlet
|
|
7
|
Mounting Method
|
(2): SAE 2-hole mounting Omitted: SAE 4-hole mounting
|
|
8
|
Rotation Direction
|
(LH): Counterclockwise (viewed from shaft end) Omitted: Clockwise
|
|
9
|
Standard No.
|
18: Standard type
|
1.2 Double-Stage Pump Model Format
(F3)-SQP(S)32-35-17-86CD(2)-(LH)-18
|
Position
|
Meaning
|
Description
|
|
3
|
Frame Combination
|
21, 31, 32, 41, 42, 43
|
|
4
|
First Stage (Shaft Side) Displacement Code
|
Corresponds to the displacement of the shaft-side pump
|
|
5
|
Second Stage (Cover Side) Displacement Code
|
Corresponds to the displacement of the cover-side pump
|
|
6
|
Oil Outlet Position
|
First two digits: First stage Last two digits: Second stage
|
1.3 Triple-Stage Pump Model Format
(F3)-SQP432-60-38-15-86CCC(2)-(LH)-18
|
Position
|
Meaning
|
Description
|
|
3
|
Frame Combination
|
211, 311, 321, 421, 431, 432
|
|
4
|
First Stage (Shaft Side) Displacement Code
|
Corresponds to the displacement of the shaft-side pump
|
|
5
|
Second Stage Displacement Code
|
Corresponds to the displacement of the middle pump
|
|
6
|
Third Stage (Cover Side) Displacement Code
|
Corresponds to the displacement of the cover-side pump
|
|
7
|
Oil Outlet Position
|
Three digits correspond to the three stages of the pump respectively
|
2. Single-Stage Pump Series (SQP/SQPS 1/2/3/4)
|
Series
|
Displacement Code
|
Displacement Range (cc/rev)
|
Rated Pressure (MPa)
|
Max Pressure (MPa)
|
Speed Range (r/min)
|
|
SQP(S)1
|
2,3,4,5,6,7,8,9,11,12,14
|
6.4-44.8
|
14.0
|
17.5
|
600-1800
|
|
SQP(S)2
|
10,12,14,15,17,19,21
|
31.8-66.8
|
14.0
|
17.5
|
600-1800
|
|
SQP(S)3
|
17,21,25,30,32,35,38
|
53.8-120.5
|
14.0
|
17.5
|
600-1800
|
|
SQP(S)4
|
30,35,38,42,50,60
|
94.8-188.4
|
14.0
|
17.5
|
600-1800
|
Key Characteristics:
-
The pump core is fully interchangeable with V-series cartridge vane pumps, ensuring flexible maintenance
-
Built-in pulsation attenuation structure with low noise level
-
Thickened shell design with high strength and excellent shock resistance
3. Double-Stage Pump Series (SQP/SQPS 21/31/32/41/42/43)
|
Series
|
Frame Combination
|
Displacement Code Range
|
Total Displacement Range (cc/rev)
|
Rated Pressure (MPa)
|
Max Pressure (MPa)
|
|
SQP(S)21
|
2+1
|
Shaft side: 10-21 Cover side: 2-14
|
38.2-111.6
|
14.0
|
17.5
|
|
SQP(S)31
|
3+1
|
Shaft side: 17-38 Cover side: 2-14
|
60.2-165.3
|
14.0
|
17.5
|
|
SQP(S)32
|
3+2
|
Shaft side: 17-38 Cover side: 10-21
|
85.6-187.3
|
14.0
|
17.5
|
|
SQP(S)41
|
4+1
|
Shaft side: 30-60 Cover side: 2-14
|
101.2-233.2
|
14.0
|
17.5
|
|
SQP(S)42
|
4+2
|
Shaft side: 30-60 Cover side: 10-21
|
126.6-255.2
|
14.0
|
17.5
|
|
SQP(S)43
|
4+3
|
Shaft side: 30-60 Cover side: 17-38
|
148.6-308.9
|
14.0
|
17.5
|
Application Advantages:
-
Combines different displacements to realize flexible circuit design
-
More energy-saving than single large-displacement pumps, suitable for multi-actuator systems
-
Each stage works independently, enabling separate control of pressure and flow
4. Triple-Stage Pump Series (SQP 211/311/321/421/431/432)
|
Series
|
Frame Combination
|
Displacement Code Range
|
Total Displacement Range (cc/rev)
|
Rated Pressure (MPa)
|
Max Pressure (MPa)
|
|
SQP211
|
2+1+1
|
Shaft side: 10-21 Middle: 2-14 Cover side: 2-14
|
44.6-156.4
|
14.0
|
17.5
|
|
SQP311
|
3+1+1
|
Shaft side: 17-38 Middle: 2-14 Cover side: 2-14
|
70.0-199.1
|
14.0
|
17.5
|
|
SQP321
|
3+2+1
|
Shaft side: 17-38 Middle: 10-21 Cover side: 2-14
|
95.4-221.1
|
14.0
|
17.5
|
|
SQP421
|
4+2+1
|
Shaft side: 30-60 Middle: 10-21 Cover side: 2-14
|
133.0-276.0
|
14.0
|
17.5
|
|
SQP431
|
4+3+1
|
Shaft side: 30-60 Middle: 17-38 Cover side: 2-14
|
155.0-308.9
|
14.0
|
17.5
|
|
SQP432
|
4+3+2
|
Shaft side: 30-60 Middle: 17-38 Cover side: 10-21
|
180.4-330.9
|
14.0
|
17.5
|
5. Displacement Code and Actual Displacement Correspondence Table (cc/rev)
|
Displacement Code
|
Actual Displacement
|
Displacement Code
|
Actual Displacement
|
Displacement Code
|
Actual Displacement
|
|
2
|
6.4
|
10
|
31.8
|
25
|
79.5
|
|
3
|
9.5
|
11
|
35.0
|
30
|
94.8
|
|
4
|
12.7
|
12
|
38.2
|
32
|
100.5
|
|
5
|
15.9
|
14
|
44.8
|
35
|
110.5
|
|
6
|
19.1
|
15
|
47.9
|
38
|
120.5
|
|
7
|
22.3
|
17
|
53.8
|
42
|
132.5
|
|
8
|
25.5
|
19
|
60.6
|
50
|
159.0
|
|
9
|
28.7
|
21
|
66.8
|
60
|
188.4
|
6. General Technical Parameters
|
Parameter
|
Value
|
Remark
|
|
Working Medium
|
Petroleum-based hydraulic oil, water-glycol, phosphate ester oil
|
Match the corresponding model prefix
|
|
Viscosity Range
|
15-400 mm²/s
|
Recommended: 32-68 mm²/s
|
|
Oil Temperature Range
|
-10°C to +80°C
|
Optimum temperature: 40-50°C
|
|
Mounting Method
|
SAE 2-hole / 4-hole flange
|
Compliant with ISO standards
|
|
Shaft End Type
|
Parallel square key (Type 86)
|
Standard configuration
|
|
Noise Level
|
3-5 dB lower than ordinary vane pumps
|
Adopts built-in pulsation attenuation structure
|
|
Efficiency
|
Volumetric efficiency ≥95%, total efficiency ≥85%
|
Under rated working conditions
|
7. Selection Guidelines
-
Displacement Selection: Calculate the required displacement according to system flow demand and rotating speed (Displacement = Flow ÷ Rotating Speed)
-
Pressure Matching: The system working pressure shall be lower than the rated pressure (14.0 MPa), and the peak pressure shall not exceed the maximum pressure (17.5 MPa)
-
Structural Type: Single-stage pumps apply to single-circuit systems; double-stage and triple-stage pumps apply to multi-circuit systems
-
Port Configuration: Select standard SQP type or special-port SQPS type as required
-
Hydraulic Oil Type: Select appropriate hydraulic oil according to working conditions and match the corresponding model prefix
Notice: For detailed specifications, please refer to the official Tokimec product manual. The above parameters are based on the standard specifications of Tokimec SQP series pumps.
I can help you match the most suitable SQP model and provide recommended configurations according to your working conditions (system pressure, flow rate, rotating speed, oil type). Just tell me the above key parameters.
