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MH30 Metaris Gear Pumps

The Metaris MH30 is a heavy-duty, fixed-displacement external gear pump designed for high-performance mobile and industrial applications. Built with a rugged three-piece cast iron construction and a specialized roller bearing design, it is 100% interchangeable with the Parker/Commercial Intertec P30 series. It is widely recognized as a "workhorse" for systems requiring high flow and structural durability under intense operating conditions.

Model:
MH30
Brand:
Green Hydraulic
Model Number:
MH30
Packaging Details:
Standard export carton/plywood case
Testing Before Shipment:
Yes
Cartification:
ISO9001，CE
Markets:
• Industrial • Energy • Government (Non Aerospace) • HVAC • Mobile • Natural Resources • Transportation (Non Aerospace)
Application:
1. Industrial Hydraulic Systems 2. Mobile Equipment (Industrial Vehicles) 3. Construction and Engineering Machinery 4. Metallurgy Industry
Shaft Type:
Key Shaft and Spline shaft
MOQ:
1 set


Availability:



Inquiry

Product Description

Product Description

MH30 SERIES Gear Pump Overview

The Metaris MH30 is a heavy-duty, fixed-displacement external gear pump engineered for high-output hydraulic systems that demand exceptional structural integrity and long-term field reliability. As a premium roller-bearing style pump, the MH30 is designed to be 100% interchangeable with the industry-standard Parker/Commercial P30 series. Its robust three-piece cast iron construction and high-flow capability make it the definitive "workhorse" for heavy-duty mobile machinery and industrial power systems where failure is not an option.

Features and Benefits

Rugged Three-Piece Cast Iron Construction:
Built to endure extreme mechanical stress, the MH30 features high-tensile cast iron bodies, flanges, and covers. This heavy-duty material provides far superior resistance to fatigue and structural "stretching" compared to aluminum pumps, ensuring peak performance and stable alignment even under intense shock loads.
Heavy-Duty Roller Bearing Design:
The MH30 utilizes high-capacity, precision-engineered roller bearings instead of bushings. This design excels in handling significant radial shaft loads and offers a much higher tolerance for fluid contamination, resulting in extended service life and reduced downtime in the most abrasive and harsh operating environments.
Advanced Pressure-Balanced Thrust Plates:
To ensure maximum power delivery, the MH30 incorporates high-strength, pressure-balanced thrust plates. These plates automatically adjust to maintain optimal internal clearances between the gears and the housing, achieving superior volumetric efficiency (exceeding 90%) and minimizing internal heat generation during continuous operation.
High-Torque Alloy Steel Gears:
Equipped with precision-ground, high-alloy steel gears and large-diameter journals, the MH30 is built to deliver smooth, consistent hydraulic flow. This precision engineering minimizes bearing surface loads and friction, allowing the pump to handle continuous operating pressures of up to 3,000 psi (207 bar) with exceptional reliability.
Modular Versatility and System Integration:
The MH30 series offers a wide displacement range (from 16.2 to 64.6 cc/rev) and supports various international mounting standards, including SAE "B" 2-bolt and 4-bolt configurations. With its modular design, it can be easily configured as a single pump or ganged into multi-stage "tandem" units, providing engineers with ultimate flexibility for complex hydraulic circuits.

Model Codes

Technical Data

Gear Width	Displacement	Max. Pressure	Max. Speed	Flow (1500 rpm)
inch (mm)	in⊃3;/rev (cc/rev)	psi (bar)	RPM	gpm (lpm)
0.50" (12.7)	0.99 (16.2)	3000 (207)	2400	6.4 (24.2)
0.75" (19.1)	1.48 (24.3)	3000 (207)	2400	9.6 (36.3)
1.00" (25.4)	1.97 (32.3)	3000 (207)	2400	12.8 (48.4)
1.25" (31.8)	2.46 (40.4)	3000 (207)	2400	16.0 (60.5)
1.50" (38.1)	2.96 (48.5)	3000 (207)	2400	19.2 (72.6)
1.75" (44.5)	3.45 (56.5)	2500 (172)	2400	22.4 (84.7)
2.00" (50.8)	3.94 (64.6)	2500 (172)	2400	25.6 (96.9)

MH30 Hydraulic Variable Vane Pump Installation Dimensions

Applications

The Metaris MH30 series provides a high-output, heavy-duty power solution specifically engineered for large-scale applications where maximum structural strength and high flow capacity are essential for mission-critical operations:

Heavy Construction & Earthmoving: A primary choice for large excavators, bulldozers, and articulated dump trucks, where the MH30's cast iron body and roller bearings easily withstand the massive shock loads and continuous high-pressure demands of site preparation.
Large-Scale Waste & Recycling: Optimized for full-size refuse collection vehicles, heavy-duty scrap balers, and stationary compactors that require high-volume hydraulic flow and extreme durability during rapid, high-frequency work cycles.
Industrial Material Handling: Widely used in container handlers, reach stackers, and large-capacity terminal tractors, providing the reliable lifting power and high radial load capacity needed for moving heavy industrial loads.
Forestry & Timber Processing: Ideal for heavy-duty feller bunchers, log harvesters, and large wood chippers, ensuring consistent performance and field-serviceability in isolated, high-vibration environments where equipment downtime is costly.
Truck & Trailer Systems: Frequently employed in heavy-duty recovery vehicles, multi-axle lowboys, and bulk feed trailers for driving large hydraulic winches and multi-stage cylinder systems that demand high torque and stable flow.

Packaging & Delivery

MH30 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.

MH30 Gear Pump FAQ

1. What are MH30 series gear pumps

The MH30 is a heavy-duty, fixed-displacement external gear pump renowned for its high-flow capacity and rugged roller bearing design. Engineered as a 100% interchangeable alternative to the Parker/Commercial P30 series, it is the industry-standard "heavy-workhorse" pump. It is specifically designed for high-stress hydraulic systems where maximum structural integrity and the ability to handle large volumes of fluid are critical.

2. What makes the MH30 different from standard aluminum gear pumps

The MH30 is built to excel in extreme conditions that would overwhelm standard aluminum pumps:

Massive Cast Iron Construction: The entire three-piece structure (body, flange, and cover) is made of high-tensile cast iron. This prevents the "body stretching" often seen in aluminum pumps, ensuring internal clearances remain tight even under massive shock loads.
High-Capacity Roller Bearings: By using oversized precision roller bearings instead of bushings, the MH30 can support much higher radial shaft loads and is significantly more tolerant of oil contamination and debris.
Superior Modular Scalability: Its design allows for easy "stacking" into multiple sections (tandem or triple pumps), enabling a single drive source to power several independent hydraulic circuits with high flow requirements.

3. What is the working pressure range of MH30 pumps

The MH30 is engineered for high-torque, high-pressure service. Depending on the gear width/displacement, the series typically handles:

Continuous Pressure: Up to 3,000 PSI (207 bar).
Intermittent/Peak Pressure: Up to 3,250 PSI (224 bar).
This robust pressure rating, combined with its high flow output, makes the MH30 capable of driving the largest cylinders and hydraulic motors found on heavy machinery.

4. Can MH30 pumps replace other brands

Yes, the MH30 is a globally recognized "drop-in" replacement for the most common heavy-duty gear pumps, including:

Parker/Commercial Intertec: P30 Series.
Permco: P3000 Series.
Muncie: PL Series.
To ensure a perfect crossover, you must verify the Mounting Flange (commonly SAE B 2/4-bolt), Shaft Type (typically 13-tooth spline or 7/8" keyed), and Gear Width to confirm displacement.

5. What hydraulic oil is suitable for MH30 gear pumps

To ensure the longevity of the heavy-duty bearings and gear sets, the following is recommended:

Oil Type: High-quality, mineral-based hydraulic fluids with strong Anti-Wear (AW) or Extreme Pressure (EP) additives.
Viscosity: Standard ISO VG32 to VG68. The ideal operating range is 100 to 150 SUS (20 to 30 cSt), but it can accommodate cold starts up to 2000 SUS (430 cSt).
Filtration: To protect the roller bearing races from abrasive wear, a filtration level of ISO 4406 19/17/14 (or better) is recommended.

6. What is the typical speed range of MH30 pumps

The MH30 is designed for high-performance versatility, with an operating range from 600 RPM to 2,400 RPM. Its robust internal geometry allows it to maintain high volumetric efficiency whether it is driven by a truck engine's PTO at low idle or an industrial electric motor at high speed.

7. Do you provide OEM or customized services

Yes, we support OEM and customization, including nameplate, packaging, and specific performance requirements. Send us your drawings or specifications for evaluation.

8. How can I get a quotation quickly

Please provide the following details:

Model or displacement
Working pressure
Speed
Quantity
We will reply within 12 hours with a competitive quotation.

Certifications & Quality Assurance

MH30 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.

FAQ

1.How does the variable displacement work?

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.

2.What's our advantages?

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.

3.What is your payment terms?

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.

4.Can you make my own brand on the products?

Of course we can. Just send me your logo we can make it for you.

5.What is our main export market?

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%).

Unedited footage of the Green Hydraulic Factory

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.

Unedited footage of the Green Hydraulic Factory3

All hydraulic pumps produced by Green Hydraulic have undergone compliance testing, ensuring their quality and reliability.

Unedited footage of the Green Hydraulic Factory4

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.

Unedited footage of the Green Hydraulic Factory5

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.