SQP321-32-15-8-86AAB-18 Tokimec Triple Vane Pump 175 bar

Product Overview

The SQP Series, manufactured by Tokimec (Tokyo Keiki), is a family of high-pressure, high-performance intra-vane pumps specifically developed for low-noise industrial applications. Available in single, double, and triple configurations across 4 frame sizes, 16 series, and 32 displacement options, the SQP Series offers exceptional flexibility for complex hydraulic circuit designs.

The SQP321 is a triple vane pump that integrates three independent pumping sections (SQP3 + SQP2 + SQP1) into a single housing driven by one shaft, providing three independent oil flows for simultaneous control of multiple hydraulic functions. The SQP21 is a double vane pump (SQP2 + SQP1) offering a compact solution for medium-to-low flow requirements in compound hydraulic circuits.

Our products are manufactured to be 100% interchangeable with Tokimec (Tokyo Keiki) original specifications—a true “drop-in” replacement solution. Every unit undergoes 100% full-load and flow-matching testing under simulated operating conditions before shipment, ensuring volumetric efficiency, flow matching, and noise performance meet or exceed original specifications at rated pressure.

Technical Specifications 

SQP321-32-15-8-86AAB-18

• Product Type: Triple Fixed Displacement Vane Pump

• Brand Compatibility: Tokimec (Tokyo Keiki)

• Series: SQP321 (SQP3 + SQP2 + SQP1 triple combination)

• Section 1 Displacement (Front, SQP3): 32 ml/r

• Section 2 Displacement (Middle, SQP2): 15 ml/r

• Section 3 Displacement (Rear, SQP1): 8 ml/r

• Rated Continuous Pressure: 17.5 MPa (175 bar)

• Maximum Intermittent Pressure: 21 MPa (210 bar)

• Rated Speed Range: 600 – 1800 r/min

• Maximum Speed: 1800 r/min

• Control Configuration: 86AAB (86 = Heavy-duty keyed shaft; AAB = Port position & mounting configuration)

• Suffix Code: -18 (New NBR nitrile oil seal, for standard anti-wear mineral hydraulic oil)

• Mounting: SAE C 2-Bolt / 6-Bolt Flange

• Shaft Type: Heavy-duty keyed straight shaft

• Rotation: Clockwise (standard; unmarked = right-hand rotation)

• Fluid Compatibility: Petroleum-based hydraulic oil (NBR seals); Phosphate Ester/Water-Glycol require F3/F11 prefix custom models

• Recommended Viscosity: ISO VG32, VG46, or VG68 anti-wear hydraulic oil

• Maximum Oil Temperature: 55°C

SQP21-14-5-1DC-18

• Product Type: Double Fixed Displacement Vane Pump

• Brand Compatibility: Tokimec (Tokyo Keiki)

• Series: SQP21 (SQP2 + SQP1 double combination)

• Section 1 Displacement (Front, SQP2): 14 ml/r

• Section 2 Displacement (Rear, SQP1): 5 ml/r

• Rated Continuous Pressure: 17.5 MPa (175 bar)

• Maximum Intermittent Pressure: 21 MPa (210 bar)

• Rated Speed Range: 600 – 1800 r/min

• Maximum Speed: 1800 r/min

• Control Configuration: 1DC (1 = Standard light-duty keyed straight shaft; DC = Dual-port configuration)

• Suffix Code: -18 (New NBR nitrile oil seal)

• Mounting: SAE Standard Flange

• Shaft Type: Standard light-duty keyed straight shaft

• Rotation: Clockwise (standard)

• Fluid Compatibility: Petroleum-based hydraulic oil (NBR seals)

• Recommended Viscosity: ISO VG32, VG46, or VG68 anti-wear hydraulic oil

• Maximum Oil Temperature: 55°C

SQP21-17-14-1DD-18

• Product Type: Double Fixed Displacement Vane Pump

• Brand Compatibility: Tokimec (Tokyo Keiki)

• Series: SQP21 (SQP2 + SQP1 double combination)

• Section 1 Displacement (Front, SQP2): 17 ml/r → 52.5 ml/r

• Section 2 Displacement (Rear, SQP1): 14 ml/r → 43.3 ml/r

• Rated Continuous Pressure: 14 MPa (140 bar)

• Maximum Intermittent Pressure: 17.5 MPa (175 bar)

• Rated Speed Range: 600 – 1800 r/min

• Maximum Speed: 1800 r/min

• Control Configuration: 1DD (1 = Standard light-duty keyed straight shaft; DD = Dual-port, 90° clockwise right-side oil outlet configuration)

• Suffix Code: -18 (New NBR nitrile oil seal)

• Mounting: Standard Flange Mount

• Shaft Type: Standard light-duty keyed straight shaft

• Rotation: Clockwise (standard; unmarked = right-hand rotation)

• Fluid Compatibility: Standard mineral hydraulic oil (NBR seals); Phosphate Ester/F3 or Water-Glycol/F11 require model prefix notation

• Recommended Viscosity: ISO VG32, VG46, or VG68 anti-wear hydraulic oil

• Maximum Oil Temperature: 55°C

Key Technical Advantages

1. Intra-Vane (Sub-Vane) Design for Extended Service Life
The SQP Series features an advanced intra-vane (sub-vane) structure, delivering high pressure, large capacity, small volume, smooth operation, low noise, high volumetric efficiency, and long service life. The unique oil supply system between the vane and intra-vane ensures optimal contact between the blade and stator, minimizing flow loss.

2. Industry-Leading Low-Noise Performance
The SQP Series is globally renowned as “Super-Quiet”—the preferred choice for indoor industrial environments. The integrated pulsation attenuation structure dramatically reduces pressure pulsation, resulting in lower noise and smoother acoustic quality. The multi-vane design ensures smooth, steady flow with negligible pressure pulsation.

3. High Volumetric Efficiency & Energy Savings
Precision-ground internal components minimize internal leakage and reduce heat generation. The unique intra-vane oil supply system further optimizes volumetric efficiency. Precise axial clearance control ensures slow volumetric efficiency decay over long-term operation.

4. Modular Cartridge Design for Rapid Maintenance
The cartridge-type construction allows individual pump cartridge kits to be replaced quickly and independently. Each section features its own cartridge kit. On-site repairs or displacement changes can be completed in minutes without removing the entire pump assembly from the system. When replacing cartridges, simply inspect seals inside the pump to avoid crimping.

5. 100% Drop-In Interchangeability – Zero Retrofit Cost
Manufactured to exact Tokimec (Tokyo Keiki) original specifications—mounting dimensions, port locations, and shaft configurations are identical to the original. No piping modifications or installation adapters are required for direct replacement.

6. 100% Full-Load Tested for Proven Reliability
Every pump undergoes rigorous full-pressure and flow-matching testing across all sections before shipment. Critical components are manufactured from premium materials with advanced heat treatment processes. The high-rigidity housing provides excellent vibration resistance, ensuring stability and reliability under rated operating conditions.

Application Areas

• Injection Molding Machines: SQP321 triple pump synchronizing high-speed clamping, injection, and ejection functions

• Die-Casting Machinery: Delivering stable, pulse-free high-pressure hydraulic power

• CNC Machine Tools & Machining Centers: SQP21 double pumps providing smooth hydraulic power for precision numerical control systems

• Small-to-Medium Injection Molding Machines: SQP21-14-5 and SQP21-17-14 for fast/slow dual-circuit systems in small-to-medium injection molding equipment

• Rubber Processing Machinery: Low-noise operation improves factory working environment

• Bending & Forming Presses: Staged flow control for energy-efficient cycle operation

• Industrial Power Units: Core power source for indoor hydraulic stations requiring quiet operation

Expert Maintenance Tips

1. Model Identification and Selection

• SQP321 Series: Triple pump (SQP3 + SQP2 + SQP1). Front section (SQP3) displacement code 32 → 32 ml/r; middle section (SQP2) displacement code 15 → 15 ml/r; rear section (SQP1) displacement code 8 → 8 ml/r.

• SQP21 Series: Double pump (SQP2 + SQP1). Front main pump displacement code 14 → 14 ml/r, 17 → 52.5 ml/r; rear auxiliary pump displacement code 5 → 5 ml/r, 14 → 43.3 ml/r.

• Suffix “-18” indicates new NBR nitrile oil seal for standard anti-wear mineral hydraulic oil; Phosphate Ester/Water-Glycol require F3/F11 prefix models.

2. Installation Precautions

• Before installation, verify pump rotation direction matches system requirements—unmarked = standard right-hand/clockwise (viewed from shaft end). SQP Series vane pumps have a strictly defined rotation direction—reverse operation is not permitted.

• For SQP321 triple pumps, note shaft torque limitations—the combined load torque of all sections must not exceed specified values.

• Suction piping should be as short as possible, minimizing unnecessary restrictions such as elbows.

• The pump housing must not bear piping loads; suction and discharge lines must have independent supports.

3. Pre-Startup Checklist

• Before startup, verify inlet and outlet are correctly connected and pump rotation matches the nameplate.

• Confirm normal operation without any load before restarting.

• After long-term storage, remove trapped air from the system by loosening flanges or connections before first startup.

• The reservoir and circuit should be clean and free of dirt and debris prior to filling with fluid.

4. Fluid Management

• ISO VG32, VG46, or VG68 anti-wear hydraulic oil is recommended for optimal performance.

• Oil temperature should not exceed 55°C.

• Maintain proper fluid filtration (NAS 9 or higher) and replace filters regularly.

5. Maintenance & Overhaul

• The SQP Series features cartridge-type construction—cartridges can be replaced without removing the entire pump.

• When replacing cartridges, inspect seal conditions inside the pump to avoid crimping.

• If flow drops, replace only the internal cartridge kits—not the entire housing.

• Mounting bolts and flange connections may loosen due to vibration; inspect and tighten periodically.