DH150W-7 Gear Pump

DH150W-7 Gear Pump: Factory-Direct Hydraulic Power for Doosan Excavators

The DH150W-7 Gear Pump from Olive Branch Hydraulics is a precision-engineered pilot and charge pump designed as a direct-fit replacement for the Doosan DH150W-7 wheel excavator hydraulic system. Manufactured in our Hebei, China facility under strict ISO 9001 standards, this gear pump delivers the stable pilot pressure, consistent flow, and mechanical reliability that OEMs, distributors, and heavy-equipment rebuilders demand.

Built around hardened steel gears, high-tolerance aluminum housings, and premium NBR/FKM seals, the DH150W-7 gear pump is engineered for continuous-duty operation in demanding excavator environments — from construction sites in the Middle East to municipal fleets across Europe and Southeast Asia. Every unit is machined on CNC centers, honed to micron-level tolerances, and 100% pressure-tested before it leaves our factory.

As a factory-direct supplier, we eliminate trader markups and pass 15–25% cost savings directly to procurement teams. Our vertically integrated production line — spanning raw material sourcing, precision machining, assembly, and testing — gives us full control over quality, lead time, and cost. Whether you are sourcing 50 units for a repair shop or 5,000 units for an OEM assembly line, Olive Branch Hydraulics delivers consistent specification, batch-to-batch uniformity, and documented performance data.

For procurement managers focused on price competitiveness, on-time delivery, and zero-defect shipments, the DH150W-7 gear pump represents a proven, high-margin sourcing solution backed by full technical documentation and dedicated after-sales support.

Key Features & Buyer Benefits of the DH150W-7 Gear Pump

Every design decision in the DH150W-7 gear pump is engineered to reduce your total cost of ownership and accelerate your time-to-market. Below is a breakdown of core features translated directly into measurable buyer benefits.

• Precision-Ground Steel Gears (HRC 58–62): Delivers a service life of 8,000+ operating hours under standard load conditions, reducing warranty claims and end-user complaints by up to 40%.
• Die-Cast Aluminum Housing: Reduces unit weight by 22% versus cast-iron equivalents, cutting freight costs on bulk orders and easing installation for field technicians.
• SAE-Standard Port Configuration: Ensures true plug-and-play compatibility with OEM Doosan DH150W-7 hydraulic circuits — no adapters, no rework, no installation delays.
• High Volumetric Efficiency (≥92%): Maximizes hydraulic power transfer, lowering fuel consumption on the host excavator and giving your customers a tangible performance edge.
• Dual-Lip Shaft Seal (NBR + FKM Option): Prevents leakage in temperature ranges from -20°C to +80°C, suitable for Middle East desert climates and European winter operations alike.
• Batch-Coded Traceability: Every pump is laser-marked with a production batch code, giving your QA team full traceability from casting to final test.
• 100% Pressure & Flow Tested: Zero-defect shipment policy eliminates costly RMA cycles and protects your brand reputation in competitive markets.

For procurement teams, the combined benefit is clear: lower unit cost, predictable lead times, and a documented quality record that supports competitive bidding, private-label positioning, and long-term customer retention.

DH150W-7 Technical Specifications & Performance Parameters

The following technical parameters are drawn from our factory acceptance test (FAT) protocol and reflect the standard configuration of the DH150W-7 gear pump. Custom configurations — including modified displacement, alternate port sizes, and non-standard shaft ends — are available under our OEM program.

All parameters are verified on calibrated hydraulic test benches equipped with high-precision flow meters, pressure transducers, and thermal sensors. Detailed FAT reports are provided with every bulk shipment upon request.

Compatible Machines & Application Scenarios

The DH150W-7 gear pump is engineered as a drop-in replacement for the Doosan DH150W-7 wheel excavator, but its SAE-standard mounting flange and configurable displacement make it compatible with a wide range of adjacent applications across our target markets.

• Wheel & Crawler Excavators: Doosan DH150W-7, DH170W-7, Solar 140W-V, and equivalent tonnage-class machines.
• Wheel Loaders: Pilot pressure supply for 3–5 ton loader hydraulic control circuits.
• Skid Steer Loaders: Auxiliary charge pump for closed-loop transmission systems.
• Municipal & Utility Vehicles: Street sweepers, sewer cleaners, and refuse compactors requiring stable pilot flow.
• Agricultural Machinery: Combine harvesters and self-propelled sprayers with hydraulic auxiliary circuits.
• Industrial Stationary Equipment: Injection molding machines, hydraulic presses, and material handling systems.

Distributors serving construction contractors in the Middle East, rebuilders supplying rental fleets across Europe and North America, and OEM assemblers in Southeast Asia all rely on this pump for its cross-application flexibility. Our engineering team provides free compatibility verification against your target machine list before order confirmation.

100% Pre-Shipment Testing & ISO 9001 Quality Control

Quality is not a slogan at Olive Branch Hydraulics — it is enforced through a documented, three-stage inspection process that covers every DH150W-7 gear pump we produce. No exceptions.

Stage 1: Incoming Material Inspection (IQC)

Every batch of steel bar stock, aluminum ingot, and seal material is tested using our in-house material analyzer for hardness, chemical composition, and dimensional accuracy. Non-conforming material is rejected at the gate — never released to production.

Stage 2: In-Process Quality Control (IPQC)

Gears are honed and ground on dedicated Swiss and Japanese precision equipment, with SPC (statistical process control) sampling every 30 minutes. Housings are bored to ±0.005 mm tolerance and CMM-inspected. Assembly is performed on semi-automated lines with torque-controlled fastening and traceable batch coding.

Stage 3: Final Outgoing Quality Control (OQC)

Every single pump — 100%, not sampled — is mounted on our hydraulic test bench and cycled through:

• No-load run-in at rated speed (5 minutes)
• Full-pressure flow test at 25 MPa
• Volumetric efficiency measurement
• Leak detection under sustained peak pressure
• Noise level verification (≤ 78 dB at 1 meter)

Each pump receives a serialized test certificate archived in our QMS for five years. This zero-defect discipline is why OEM buyers consistently report sub-0.3% field failure rates on Olive Branch Hydraulics gear pumps.

OEM Customization & Private Label Capabilities

Olive Branch Hydraulics operates as a strategic OEM partner — not just a component vendor. Our engineering and production teams support full private-label programs for distributors, brand owners, and equipment manufacturers targeting global markets.

Customization Scope

• Performance: Modified displacement (8–14 cc/rev), rotation direction, pressure rating, and shaft configuration.
• Port Configuration: Custom P/T port sizing, SAE flange variations, and specialized fittings.
• Branding: Laser-etched logos, custom nameplates, painted housings in Pantone-matched colors.
• Packaging: Private-label cartons, custom manuals, multi-language documentation, and barcoded SKU labels.

OEM Process & Timeline

1. Technical Consultation (Days 1–3): Share your target specifications, cross-reference part numbers, or sample unit.
2. Engineering Drawing & Quotation (Days 4–7): Our team issues 2D/3D drawings and formal pricing.
3. Sample Production (Days 15–25): Prototype units delivered for field validation.
4. Mass Production (Days 30–45): Full run initiated upon sample approval.

OEM sample MOQ starts at just 5 units, and full production MOQ is 50 units per customized SKU — significantly lower than industry standard. This makes our OEM program accessible to mid-tier distributors and boutique brands, not just tier-one OEMs.

MOQ, Lead Time & Bulk Order Pricing

Transparent commercial terms are critical for procurement planning. Below is our standard order structure for the DH150W-7 gear pump. Volume-tiered pricing rewards committed buyers, and lead times are guaranteed by contract.

Payment Terms: 30% T/T deposit, 70% balance against B/L copy. L/C at sight accepted for orders above USD 30,000. West Union and PayPal supported for sample orders.

Lead Time Guarantee: For repeat customers on annual framework contracts, we maintain a rolling safety stock of 500+ units, enabling emergency dispatch within 72 hours. This is a critical advantage for buyers managing warranty replacements or unplanned OEM demand spikes.

Export Packaging & Worldwide Shipping Solutions

Every DH150W-7 gear pump is packaged to withstand long-haul international freight, humidity extremes, and multi-stage handling — protecting both the product and your brand.

Standard Export Packaging

• Inner: VCI anti-rust film, individually sealed to prevent oxidation during transit.
• Middle: High-density foam inserts inside a 5-ply corrugated carton with unit-level barcode and SKU label.
• Outer: Fumigation-free plywood export crate (ISPM 15 compliant) with steel banding — ideal for palletized ocean freight.
• Unit Dimensions: 28 × 22 × 18 cm per carton; 24 units per standard export pallet.

Shipping & Logistics Options

• Sea Freight (FCL / LCL): Most economical for orders above 200 units. FOB Tianjin, Qingdao, or Shanghai. Transit: 18–35 days depending on destination.
• Air Freight: Recommended for urgent orders under 300 kg. Door-to-door in 5–8 days to major European, Middle Eastern, and Southeast Asian hubs.
• Express Courier (DHL / FedEx / UPS): Ideal for samples and small parcel orders, 3–6 days worldwide.

We work with a vetted network of freight forwarders and can quote CIF, DDP, or EXW terms to match your import structure. Full export documentation — commercial invoice, packing list, certificate of origin, and material test certificate — is prepared by our in-house export team.

Ready to secure factory-direct pricing on the DH150W-7 gear pump? Contact Olive Branch Hydraulics today for a formal quotation, technical datasheet, and sample availability.