I.Bulit for The Grind of Construction Job Sites:
In job sites where loaders, road rollers and cranes grind away day in and day out, the hydraulic system is the backbone of every machine’s performance—and the hydraulic pump is the beating heart of that system. HCIC HSP2,3 series double gear pump are built exactly for this tough job, delivering steady, reliable hydraulic power that keeps heavy-duty equipment running smoothly through every shift.
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额定压力（MPa)
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21/21
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最高压力（MPa）
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25/25
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最高转数（r/min）
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2200
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额定转数（r/min)
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2400
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容积效率
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≥90/≥90
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工作油温
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-20～+120
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II.Smart Design That Delivers Real-World Performance:
The secret to these pumps’ standout performance lies in a smart structural tweak: axial follow-up compensation technology. This design trick expands the high-pressure operating zone while cutting down radial force on the pump body dramatically. The result? Industry-leading efficiency, rock-solid pressure resistance, and tough impact tolerance that holds up to constant start-stops and load spikes on busy construction sites. On top of that, the optimized internal build keeps operation quiet, protecting both the operator’s comfort and the pump’s long-term service life.
III.Flexible Customization to Fit Any Machine:
We know every piece of machinery has its own needs—that’s why these pumps come with flexible customization options. The shaft ends offer both involute and rectangular spline specs, so they fit right into the lifting systems of loaders, the hoisting mechanisms of cranes, and the traveling parts of road rollers without a hitch. With displacement ranging from 40mL/r to 166mL/r, there’s a perfect match whether you’re running a small light-load machine or a heavy-duty workhorse that never takes a break.
IV.FAQ
Expert answers to your most common questions about HSP2,3 Series Double Gear Pumps for hydraulic systems, heavy equipment, and industrial machinery.
📏 HSP2,3 Series Gear Pump Selection & Compatibility
Q: What’s the difference between HSP2 Series and HSP3 Series Double Gear Pumps, and which one do I need for my equipment?
A: This is the #1 question we get on hydraulic equipment forums – the key difference lies in flow rate and pressure rating. HSP2 Series Double Gear Pumps are designed for medium-flow, medium-pressure applications (up to 250 bar / 3600 PSI) – ideal for small to mid-size tractors, compact loaders, and light industrial machinery. HSP3 Series Double Gear Pumps are heavy-duty, with higher flow rates and pressure resistance (up to 315 bar / 4500 PSI) – perfect for large wheel loaders, mining equipment, and heavy construction machinery. To choose the right one, share your equipment’s hydraulic system flow/pressure specs and application – our technical team will confirm the perfect match with no guesswork.
Q: Will the HSP2,3 Series Double Gear Pump fit my existing hydraulic system or OEM equipment?
A: Absolutely. Our HSP2,3 Series Double Gear Pumps are engineered to match OEM dimensions and performance specs for most major heavy equipment brands (Caterpillar, Komatsu, LiuGong, SDLG, and John Deere). They feature standard mounting flanges, shaft sizes, and port configurations – so they’re a direct drop-in replacement with no modifications needed. If you have a custom hydraulic system or vintage machinery, we can also provide minor adjustments to the pump’s ports or shaft to ensure a perfect fit – all while maintaining the HSP2/3 series’ core performance.
Q: What key specifications do I need to confirm before ordering an HSP2,3 Series Double Gear Pump?
A: To avoid mismatched parts (a common headache for hydraulic technicians), you need 4 core specs – this is our go-to checklist for all HSP2/3 orders. 1) Series type (HSP2 or HSP3 – based on your system’s pressure/flow needs). 2) Mounting configuration (flange type, shaft diameter, and rotation direction). 3) Port size and type (inlet/outlet ports – to match your hydraulic hoses). 4) Operating fluid specifications (hydraulic oil viscosity, which impacts pump efficiency). With these specs, we’ll ensure you get an HSP2/3 pump that works seamlessly with your system.
Q: Can I replace a single gear pump with an HSP2,3 Series Double Gear Pump in my hydraulic system?
A: Yes – but with one critical consideration (a hot topic on international hydraulic forums). The HSP2,3 Series Double Gear Pumps provide two independent flow outputs in one compact unit, which is great for powering two separate hydraulic functions (e.g., loader lift and tilt) without adding an extra pump. Before replacement, you need to confirm your hydraulic system’s power source (engine horsepower) can support the HSP2/3 series’ flow and pressure requirements – our technical team can help you calculate this to avoid system underperformance or pump damage.
⚙️ HSP2,3 Series Gear Pump Performance & Troubleshooting
Q: What kind of performance can I expect from the HSP2,3 Series Double Gear Pump in heavy-duty applications?
A: The HSP2,3 Series Double Gear Pumps are built for consistent, reliable performance in daily heavy-duty use – a big reason they’re a top choice for construction and agricultural equipment. They deliver smooth, pulsation-free flow (critical for precise hydraulic control), high volumetric efficiency (minimizing energy waste), and excellent wear resistance (thanks to hardened gear teeth and precision-machined housings). The HSP3 Series, in particular, excels in high-cycle applications (e.g., continuous loader operation) with minimal pressure drop, even after thousands of working hours.
Q: Why do my hydraulic gear pumps often leak or fail prematurely, and how can the HSP2,3 Series prevent this?
A: The top 3 causes of gear pump failure (per hydraulic industry forums) are: 1) Contaminated hydraulic fluid (scratches internal components), 2) Incorrect oil viscosity (causes excessive wear), 3) Poor sealing (leads to pressure loss). Our HSP2,3 Series Double Gear Pumps address these issues with: 1) Hardened internal components (resist contamination damage), 2) Wide compatibility with common hydraulic oils (46#/68# viscosity), 3) High-quality nitrile (NBR) or fluororubber (FKM) seals (prevent leakage and withstand extreme temperatures). Regular fluid changes will further extend the HSP2/3 series’ service life to 3–5 years in heavy-duty use.
Q: Can the HSP2,3 Series Double Gear Pump withstand harsh operating environments (dusty, hot, cold, or muddy)?
A: Absolutely. The HSP2,3 Series is engineered for the harsh environments common to construction, mining, and agricultural work. For dusty/muddy conditions, the pump features a sealed housing and dust-proof shaft seals to prevent contamination from entering the gear chamber. For extreme heat (up to 120°C), we use high-temperature FKM seals and heat-dissipating aluminum alloy housings. For extreme cold (down to -40°C), the pump’s internal components are tempered to avoid brittleness, and it works seamlessly with low-viscosity hydraulic oil. This rugged design makes the HSP2/3 series far more durable than standard off-the-shelf gear pumps.
Q: What are the most common signs of a failing HSP2,3 Series Double Gear Pump, and how do I troubleshoot them?
A: Based on years of supporting hydraulic technicians, the top 4 warning signs (and quick fixes) are: 1) Low hydraulic pressure/flow (usually worn gear teeth or internal leaks – check pump pressure with a gauge; replace if pressure is below specs). 2) Unusual noise (whining/grinding) (usually low fluid levels or cavitation – top up fluid and check for clogged inlet lines). 3) External leakage (usually worn shaft seals or damaged gaskets – replace with our HSP2/3 series genuine seal kits). 4) Pump overheating (usually incorrect oil viscosity or restricted flow – switch to recommended hydraulic oil and clear blocked lines).
🛡️ HSP2,3 Series Gear Pump Customization & After-Sales Support
Q: Do you offer custom modifications for the HSP2,3 Series Double Gear Pump to match my unique hydraulic system?
A: Yes – custom modifications for the HSP2,3 Series are one of our core strengths (a top Google search for clients with custom hydraulic systems). We can modify key components to meet your needs: 1) Port size/type (reconfigure inlet/outlet ports to match your hoses), 2) Shaft/mounting (adjust shaft diameter or flange type for non-standard equipment), 3) Seal materials (upgrade to FKM for extreme heat or low-temp NBR for cold environments), 4) Flow rate (tune gear teeth to match your system’s flow requirements). All custom HSP2/3 pumps meet ISO 9001 and CE standards, with the same reliable performance as our standard models.
Q: What warranty do you provide for the HSP2,3 Series Double Gear Pump, and what does it cover?
A: All our HSP2,3 Series Double Gear Pumps (standard and custom) come with a comprehensive 12-month warranty – this is a huge selling point for clients, and it’s a top Google search for anyone looking for reliable hydraulic components. The warranty covers material defects and manufacturing errors (non-human damage) – so if the pump fails due to faulty gear teeth, cracked housings, or defective seals within the warranty period, we’ll provide a free replacement (and cover shipping for bulk orders) with no lengthy claim processes. We also offer an extended warranty option for clients with continuous 24/7 operating systems (e.g., mining equipment).
Q: Do you supply genuine spare parts for the HSP2,3 Series Double Gear Pump (seals, gears, gaskets)?
A: Yes. We stock a full range of genuine spare parts for the HSP2,3 Series Double Gear Pumps – including seal kits, hardened gear sets, gaskets, shaft bearings, and housing components. These parts are precision-machined to match the HSP2/3 series’ original specs, so they fit perfectly and restore the pump’s full performance (unlike generic aftermarket parts, which often cause leaks or reduced efficiency). We also offer complete repair kits for the HSP2/3 series – ideal for on-site maintenance and minimizing equipment downtime.
Q: How quickly can I get a replacement HSP2,3 Series Double Gear Pump to minimize my equipment downtime?
A: We understand that downed hydraulic equipment means lost revenue – this is the top priority for every client we work with. For standard HSP2,3 Series Double Gear Pumps (the most common configurations for loaders, tractors, and construction machinery), we keep a large inventory in our 3 modern factories and offer same-day or next-day shipping worldwide (via DHL, FedEx, or UPS for small orders; sea freight for bulk fleet orders). For custom-modified HSP2/3 pumps, we offer expedited production for emergency orders (3–5 business days) – so you can get the pump you need and get back to work as quickly as possible.
V.The Go-To Pump for Unstoppable Construction Operations:
When your construction gear needs a hydraulic pump that won’t let you down, HCIC HSP2,3 series double gear pumps are the go-to choice. They boost loader efficiency, lock in road roller compaction quality, and stabilize crane lifting operations—all while standing up to the harshest job site conditions, project after project.
VI.Contact Us:
HCIC is a professional hydraulic manufacturer, mainly engaged in hydraulic system design, manufacture, installation, transformation, commissioning and hydraulic components brand sales and technical services.We hope that our product can help to save your cost and improve your quality. For More details please email us "davidsong@mail.huachen.cc" or google search "HCIC hydraulic"
4-Step Hydraulic Product General Selection Flow
1
Confirm Working Conditions
Load, temperature, environment
2
Define Key Parameters
Pressure, stroke, bore
3
Match Product Models
Select based on parameters
4
Confirm Adaptability
Fit existing system