After-sales Service: | Sampletraining/Online Support/Changing Spare Parts |
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Warranty: | 1 Year |
Type: | Pump |
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Part Number | 704-30-34120 |
Type | Fixed-displacement external gear pump |
Application | - Target Equipment: Kom-atsu WA380/WA470 Wheel Loaders, PC200/PC300 Excavators, or small industrial machinery - Drives auxiliary functions: steering, transmission lubrication, hydraulic oil cooling, or pilot control systems |
Function | - Converts mechanical input from engine/electric motor to hydraulic flow - Provides continuous, positive-displacement flow with minimal pulsation |
Hydraulic Parameters | - Displacement: 34 cm³/rev (2.07 in³/rev) (derived from part number suffix "34120", common - Rated Pressure: 160 bar (2,320 PSI) - Max Pressure: 200 bar (2,900 PSI) - Rated Speed: 1,800-2,200 RPM (engine-driven typical range) - Rated Flow: ~61 L/min (16 GPM) @ 2,000 RPM, ISO VG 46 oil at 50°C |
Gear Design | - Tooth Form: 20° involute spur gears (6-10 teeth, case-hardened for wear resistance) - Material: Gear: Alloy steel (20CrMnTi, HRC 58-62); Pump Body: Cast iron (FC250) or aluminum alloy (ADC12 for lightweight models) |
Port Connections | - Inlet: SAE 10 (3/4"-16 UNF) flange or 1" NPT (female) - Outlet: SAE 8 (1/2"-20 UNF) flange or 3/4" NPT (female) - Rotation: Clockwise (CW) or counterclockwise (CCW) - verify with shaft keyway orientation |
Mounting | - Shaft Type: SAE B spline (6-key, 19 mm diameter) or ISO 2858 cylindrical shaft - Mounting Flange: SAE J744-C (4-bolt pattern, 127 mm diameter, M10 threads) - Weight: ~12 kg (26.5 lb) (cast iron version); ~8 kg (17.6 lb) (aluminum version) |
Efficiency | - Volumetric Efficiency: ≥92% @ rated pressure - Mechanical Efficiency: ≥90% (gear mesh and bearing losses) |
Temperature Range | - Ambient: -20°C to +80°C - Hydraulic Oil: -10°C to +110°C (continuous operation, dependent on oil type) |
Filtration Requirement | - Oil cleanliness: ISO 4406: 18/16/13 (≤25 μm particles) - Requires upstream suction filter (100 μm screen) and return line filter (25 μm absolute) |
Seals & Lubrication | - Seals: Double-lip NBR or FKM (Vit-on for high-temperature applications) - Lubrication: Self-lubricated via hydraulic oil (ISO VG 32/46/68 recommended) |
Compliance | - Kom-atsu KES 08-2020 (hydraulic pump safety standard) - ISO 2228 (hydraulic fluid power - vocabulary for pumps/motors) |
ABOUT US
Our Advantage
1.Quick response within 12 hours
2.Accept small order(MOQ:1pcs)
3.Custom service.Unusual packaging,standard packing or as customer required
4.Excellent after-sales service
5.Strict quality control system.100% factory testing and inspection personnel in accordance with international standards for the high-frequency sampling, to ensure the quality of products manufactured
6.Accept ODM&OEM
Packing&Delivery&After-sale
1.Standard wooden case or cartonbox
2.Safety for long-distance transportation
3.All of the productions will be checked carefully before delivery
Pre-sales Service
1. Inquiry and consulting support
2. Sample testing support
3. Recommend the most suitable machine according to customer's purpose
4. Factory visiting welcomed
After-sales Service
1. Training how to install the machine
2. Training how to use the machine
3. Warranty 1 year
4. Engineers available to service machinery oversea
Our company has passed ISO9001:2015 quality system certification and ISO14000 environmental management system certification, based on quality system, to provide customers with first-class products and services.
Main Products
Main products are hydraulic orbit motors, hydraulic winches, hydraulic brakes, hydraulic steelhole punchers, hydraulic steerings, etc.
HOT Products - Hydraulic Motors
If you need other models of products, please feel free to contact me!