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ALP2
Green Hydraulic
ALP2
Standard export carton/plywood case
Yes
ISO9001，CE
• Industrial • Energy • Government (Non Aerospace) • HVAC • Mobile • Natural Resources • Transportation (Non Aerospace)
1. Industrial Hydraulic Systems 2. Mobile Equipment (Industrial Vehicles) 3. Construction and Engineering Machinery 4. Metallurgy Industry
Key Shaft and Spline shaft
1 set
Product Description
The Marzocchi ALP2 is a high-performance, fixed-displacement external gear pump engineered for compact and lightweight hydraulic systems that demand a high power-to-weight ratio and reliable high-pressure output. Featuring a rugged three-piece aluminum alloy construction, the ALP2 is specifically designed to deliver consistent performance in both industrial and mobile applications, where space efficiency and dependable operation are essential.
Specifications
| Parameter | Specification |
| Type | Fixed-displacement external gear pump |
| Construction | 3-piece aluminum alloy housing |
| Displacement Range | 4.5 – 35.2 cc/rev |
| Max Continuous Pressure | 250 bar (25 MPa) |
| Max Intermittent Pressure | 270 bar (27 MPa) |
| Max Peak Pressure | 290–310 bar (29–31 MPa, model-dependent) |
| Flow Range (at 1500 rpm) | 6.4 – 50.2 L/min |
| Max Operating Speed | 2500 – 4000 rpm (model-dependent) |
| Mounting Flange | Standard European DIN Group 2 / SAE “A” / “B” optional |
| Shaft Options | 1:8 taper (DIN), splined, or parallel keyway |
| Port Configuration | Side or rear ports (threaded or flange type) |
| Rotation | Clockwise / Counterclockwise / Reversible versions available |
| Bearing Type | Pressure-balanced bushings (anti-contamination design) |
| Seal Material | NBR / Viton options for different fluids |
| Operating Fluid | Mineral hydraulic oil (ISO VG 32/46/68 recommended) |
| Operating Temperature Range | -20 °C to +80 °C |
| Fluid Viscosity Range | 10 – 100 cSt (at operating temperature) |
| Filtration Recommendation | ≤ 25 μm absolute filtration |
| Volumetric Efficiency | ≥ 90% (at rated pressure/speed) |
| Mechanical Efficiency | ≥ 92% (typical) |
| Weight (typical) | 1.2 – 2.0 kg (depending on displacement) |
Applications
Applications
Utility & Service Vehicles: Ideal for truck-mounted cranes, aerial lifts, and bucket trucks, where the lightweight ALP2 design integrates seamlessly with PTO units to deliver dependable lifting and positioning power without adding excessive weight.
Material Handling Equipment: Perfect for forklifts, pallet jacks, scissor lifts, and tailgate lift systems, offering a space-efficient, high-efficiency power source that maintains consistent performance under heavy, frequent loads.
Agricultural Machinery: Widely used in tractors, seeders, fertilizer spreaders, and implement steering systems, where the pump’s contamination-resistant bushing design handles the variable load shocks and harsh operating conditions common in outdoor field environments.
Construction Equipment: Suited for small excavators, mini loaders, concrete mixers, and compact power units, delivering reliable hydraulic power for auxiliary circuits and actuation systems in space-constrained machinery.
Industrial Hydraulic Power Units: A reliable choice for machine tools, presses, conveyor systems, and test benches, providing stable, low-noise flow for continuous-duty industrial applications with demanding cycle rates.
Specialized Mobile Applications: Commonly employed in snow plows, salt spreaders, and light-duty municipal equipment, where the durable aluminum construction and high-pressure capability ensure long-term performance in harsh, high-frequency cycle conditions.
Factory&FAQ
ALP2 pumps are typically packaged securely to prevent damage during transit. The packaging includes:
Protective Wrapping: To safeguard the pump from environmental damage.
Custom Crates: For larger, heavier pumps, ensuring safe handling.
Documentation: Includes installation, maintenance instructions, and warranty details.
Delivery time depends on the model, customizations, and location but typically ranges from 2 to 6 weeks from the order date.
Lightweight Aluminum Alloy Housing: Unlike cast iron pumps, the ALP2’s aluminum construction significantly reduces overall system weight, making it ideal for mobile equipment that needs to minimize payload while maintaining structural rigidity under high pressure.
High-Efficiency Bushing Design: It uses advanced pressure-balanced bushings instead of roller bearings, providing superior bearing surface area for the gears, offering excellent resistance to fluid contamination and thermal shock while maintaining high volumetric efficiency.
Modular Port and Mounting Versatility: With options for both side and rear ports, plus multiple standard mounting configurations (SAE and DIN), the ALP2 offers unmatched installation flexibility in cramped chassis environments compared to fixed-port cast iron pump designs.
The ALP2 is a compact high-pressure performer. Depending on the specific displacement, the series typically handles:
Continuous Pressure: Up to 250 bar (3,625 PSI).
Intermittent/Peak Pressure: Up to 290 bar (4,206 PSI).
This robust pressure rating makes the ALP2 ideal for driving lifting, actuation, and compact power unit systems in both mobile and light industrial applications.
Yes, the ALP2 is a high-quality, compact alternative to other premium aluminum gear pumps. It is often used as a replacement or upgrade for:
Parker/Commercial Intertech: PGM511 Series
Casappa: PLP20 Series
Bondioli & Pavesi: Group 2 aluminum pumps
To ensure a successful swap, verify the Mounting Flange (SAE “A” / DIN Group 2), Shaft Type (taper, splined, or keyed), and Displacement (cc/rev) to match your existing system.
To protect the precision bushings and hardened steel gears, the following is recommended:
Oil Type: Premium mineral-based hydraulic fluids with strong Anti-Wear (AW) additive packages.
Viscosity: Standard ISO VG32 to VG68. The optimal operating range is 10–100 cSt, though it can handle cold starts up to 430 cSt.
Filtration: Cleanliness is vital for bushing lubrication. A minimum filtration of ISO 4406 18/16/13 is recommended to prevent abrasive particles from damaging the bushing faces.
The ALP2 series supports a wide operating speed range, depending on the specific model:
Minimum Speed: 500 rpm (for low-speed, continuous-duty applications).
Maximum Continuous Speed: Up to 3,000–3,500 rpm (most common variants).
Maximum Intermittent Speed: Up to 4,000 rpm (for short-duration peak performance).
The recommended speed range ensures optimal volumetric efficiency and service life across all typical operating conditions.
Yes, we support OEM and customization, including nameplate, packaging, and specific performance requirements. Send us your drawings or specifications for evaluation.
Please provide the following details:
Model or displacement
Working pressure
Speed
Quantity
We will reply within 12 hours with a competitive quotation.
ALP2 pumps are manufactured in compliance with international standards, ensuring high performance and reliability:
ISO 9001: Certified for quality management systems.
CE Certification: Ensures compliance with European safety, health, and environmental protection standards.
RoHS Compliance: Ensures the pump does not contain hazardous materials.
Factory Testing: Every pump is rigorously tested for performance, pressure, and leak integrity before shipping.
The pump's flow is adjusted by changing the angle of an internal swash plate. As the swash plate angle changes, the stroke length of the pistons varies, which in turn changes the volume of fluid displaced per rotation, allowing the flow rate to adapt to the system's needs.
Factory established in 2005;
With a great deal of production experience;
80+ employees become the professional team;
Constant updated ERP system ensure efficiency of work;
Sophisticated equipment ehanced the accuracy of products;
Professional salesmen provide the greast service;
With a large number of famous customers all over the world;
Great after-sales service;
With the long term cooperation with famous logistics and express company in China,provide the better goods service.
Small order/sample order,full payment in advance; Big orders send the first payment 30% before the production,and the balance before shippment.We'll show the photos of the products and packages before delivery.
Of course we can. Just send me your logo we can make it for you.
America(40.5%):USA, Canada, Argentina, Brazil
Europe(30.8%):Italy,Germany,England,Holland,Spain,Swiss,Finland,Russia,Poland.
Asia(23.5%):Korea,singapore,India,Turkey,Vietnam,Saudi Arabia,Syria, Israel,Lebanon.
Others(5.8%).
The Green hydraulic pump manufacturing facility is a specialized industrial plant that focuses on producing hydraulic pumps and related components. These factories are equipped with advanced machinery and technology to fabricate high-quality pumps designed for a wide range of applications, from heavy equipment and machinery to automotive and industrial systems.
The production process typically involves precision engineering, where raw materials like metals and alloys are processed into pump components such as gears, pistons, cylinders, and seals. These parts are then assembled into fully functional hydraulic pumps, which are tested for performance and quality control to ensure reliability, efficiency, and durability under various working conditions.
Green Hydraulic's manufacturing facilities for hydraulic pumps maintain stringent quality standards, often adhering to international certifications, to meet the expectations of customers in industries such as construction, agriculture, automotive, and manufacturing.
All hydraulic pumps produced by Green Hydraulic have undergone compliance testing, ensuring their quality and reliability.
To meet the diverse needs of different industries, the green hydraulic offer customization options, such as specialized seals, materials, and pump configurations. These facilities often work closely with engineering teams to develop tailored solutions for specific applications, from high-pressure systems to low-flow, high-efficiency pumps.
Each pump undergoes a rigorous quality control process, where pressure tests and performance assessments are conducted to ensure that the pumps meet the required standards for flow rate, pressure capacity, and durability.
