Tokimec SQP4 Series Single Vane Pump | 30-75 GPM Replacements | YHDE
Powering Large-Scale Industry: The Ultimate Guide to Tokimec SQP4 Series High-Flow Vane Pumps
Introduction
In heavy-duty industrial applications, the balance between high flow volume and operational noise is a constant challenge. The Tokimec SQP4 series (Tokyo Keiki) has long been the gold standard for achieving high displacement with ultra-low noise levels. At YHDE, with over 9 years of specialized manufacturing expertise, we provide 100% interchangeable SQP4 replacements that deliver original-level precision and durability at factory-direct pricing.
Why the SQP4 "Super Quiet" Series is Essential
The "SQP" designation stands for Super Quiet Pump. The SQP4, being the largest frame size in the single-pump family, is engineered to handle massive fluid volumes while maintaining a quiet workshop environment. This is achieved through advanced pulse-reduction technology and a precision-balanced vane design. Every unit we produce in our Foshan facility undergoes a full-load performance test to ensure it meets these stringent noise and pressure standards before shipping.
Finding Your Ideal Flow: From 30 to 75 GPM
The SQP4 series offers a diverse range of displacements to meet the specific needs of large-scale hydraulic power units (HPUs), plastic injection machines, and marine equipment. Selecting the correct USgpm (Gallons Per Minute) is critical for system speed and energy efficiency.
We provide 100% compatible "drop-in" replacements for the following models:
[SQP4-30-1-A] & [SQP4-35-1-A]: Precision high-flow for automated assembly lines.
[SQP4-38-1-A] & [SQP4-42-1-A]: Balanced power for medium-to-large industrial presses.
[SQP4-45-1-A] & [SQP4-50-1-A]: High-efficiency delivery for die-casting machinery.
[SQP4-57-1-A] & [SQP4-60-1-A]: Robust flow sources for heavy-duty automation.
[SQP4-66-1-A] & [SQP4-75-1-A]: Maximum displacement (up to 237 ml/r) for the most demanding hydraulic circuits.
Technical Specifications: Tokimec SQP4 Series Data Matrix
| Model Code | Delivery at 1200 rpm (USgpm) | Displacement (ml/r) | Max. Pressure (bar) | Mounting Standard |
| SQP4-30-1-A | 30 | 94.4 | 175 | SAE C 2-Bolt |
| SQP4-35-1-A | 35 | 110.3 | 175 | SAE C 2-Bolt |
| SQP4-38-1-A | 38 | 120.6 | 175 | SAE C 2-Bolt |
| SQP4-42-1-A | 42 | 132.3 | 175 | SAE C 2-Bolt |
| SQP4-45-1-A | 45 | 142.4 | 175 | SAE C 2-Bolt |
| SQP4-50-1-A | 50 | 158.5 | 175 | SAE C 2-Bolt |
| SQP4-57-1-A | 57 | 180.7 | 140 | SAE C 2-Bolt |
| SQP4-60-1-A | 60 | 190.0 | 140 | SAE C 2-Bolt |
| SQP4-66-1-A | 66 | 208.7 | 140 | SAE C 2-Bolt |
| SQP4-75-1-A | 75 | 237.0 | 140 | SAE C 2-Bolt |
The YHDE Quality Commitment
As a direct manufacturer, we control every step of the process. Our SQP4 pumps are not just "alternatives"; they are precision-engineered replacements designed to minimize downtime.
Direct Interchangeability: No modifications to piping or SAE C mounting are required.
Quiet Performance: Optimized internal geometry matches the original Tokimec low-noise profile.
Rapid Parts Support: We maintain a deep stock of SQP4 cartridge kits for fast on-site repairs.
Conclusion
As we head into 2026, YHDE continues to lead in providing cost-effective, high-quality hydraulic solutions for global industry. Whether you are performing routine maintenance or designing a new system, the SQP4 series remains the premier choice for high-flow, low-noise reliability.
[Contact Our Engineering Team for a Technical Quote on SQP4 Series Today]