How to Prime a Hydraulic Gear Pump: A Step-by-Step Field Guide
Skip priming and your gear pump dies in seconds. Learn the 5-minute procedure that prevents scoring, cavitatio…
| Item | Specification |
|---|---|
| Pump Type | External Gear Pump |
| Model | OT200 |
| Design | Compact & Durable |
| Performance | Stable Flow Output |
| Efficiency | High Mechanical Efficiency |
| Noise Level | Low Noise Operation |
| Service Life | Long Working Life |
| Customization | OEM & ODM Supported |
| Options | Custom Shaft / Flange / Port |
| Application | Construction & Agricultural Machinery |
The OT200 hydraulic gear pump delivers consistent high-pressure performance across heavy-duty industrial applications. Designed for procurement teams that need verified flow rates, tight tolerances, and dependable supply chains, this pump is manufactured under strict quality control with full OEM/ODM flexibility.
Whether you need standard units in volume or a fully customized solution with private-label packaging, our 10+ years of manufacturing experience means shorter lead times and fewer supply disruptions.
| Feature | Benefit |
|---|---|
| High volumetric efficiency (≥92%) | Lower energy waste, reduced operating costs per cycle |
| Hardened alloy steel gears | Extended service life under continuous high-pressure loads |
| Precision-machined housing | Minimized internal leakage, stable flow rate output |
| Wide viscosity compatibility | Operates reliably across fluid types and temperature ranges |
| Compact footprint design | Easier integration into existing hydraulic circuits and machinery |
| Low noise operation (≤72 dB) | Meets workplace safety standards without additional dampening |
Why procurement teams choose the OT200:
| Parameter | Specification |
|---|---|
| Model | OT200 |
| Pump Type | External gear pump |
| Displacement | 4.10–30.00 cm³/rev (OT200 series; confirm size code) |
| Rated Pressure | Model-specific; confirm size-dependent continuous limit |
| Peak Pressure | Model-specific; confirm peak duration and limit |
| Rated Speed | Confirm selected size and inlet conditions |
| Max Speed | Size-dependent; confirm full code |
| Theoretical Flow (by selected size) | 6.15–45 L/min @ 1500 rpm; actual flow depends on efficiency |
| Volumetric Efficiency | ≥92% |
| Inlet Port | G1-1/2" (customizable) |
| Outlet Port | G1-1/2" (customizable) |
| Shaft Type | Keyed / Splined (per request) |
| Rotation | CW / CCW (specify at order) |
| Operating Temp | -20°C to +100°C |
| Fluid Compatibility | Mineral oil, synthetic hydraulic fluid |
| Noise Level | ≤72 dB(A) |
| Weight | Confirm selected assembly |
| Mounting | SAE 2-bolt / 4-bolt flange (customizable) |
All specifications subject to confirmation based on your application requirements. Contact us for a detailed performance curve.

We support hydraulic gear pump manufacturers, system integrators, and distributors who need white-label or fully customized pump solutions without investing in tooling or production lines.
| Customization Area | Available Options |
|---|---|
| Displacement | Modified from 180–220 mL/rev range |
| Port configuration | SAE, BSP, NPT, metric thread |
| Shaft dimensions | Custom diameter, length, spline profile |
| Seal materials | NBR, FKM (Viton), PTFE |
| Surface treatment | Zinc plating, black oxide, powder coating |
| Branding | Your logo, model number, label design |
| Packaging | Neutral box, custom carton, branded pallet wrap |
| Documentation | Custom spec sheets, certificates with your branding |
| Step | Action | Timeline |
|---|---|---|
| 1 | Submit requirements (specs, volume, branding needs) | Day 1 |
| 2 | Engineering review & DFM feedback | 2–3 business days |
| 3 | Quotation with lead time confirmation | 1–2 business days |
| 4 | Sample production & approval | 10–15 business days |
| 5 | Bulk production | 20–35 business days (volume-dependent) |
| 6 | Pre-shipment inspection & documentation | 2–3 business days |
| 7 | Delivery (FOB / CIF / DDP available) | Per Incoterms agreed |
Minimum order: Negotiable based on customization complexity. Trial orders accepted for new partnerships.
Q: What is the hydraulic gear pump OT200 price for bulk orders?
A: Pricing depends on order volume, customization level, and shipping terms. We offer tiered pricing — larger quantities unlock better unit costs. Request a quote with your target quantity for an accurate breakdown.
Q: Can you match an existing OT200 pump we're currently sourcing?
A: Yes. Send us the technical drawing or a sample unit. Our engineering team will reverse-engineer and produce a compatible replacement, often at a lower cost with equivalent or better performance.
Q: What quality certifications do your pumps carry?
A: All OT200 pumps are manufactured under ISO 9001:2015 systems and carry CE marking. SGS test reports are available on request. Every unit undergoes 100% pressure and leak testing before shipment.
Q: Do you support white-label and private branding?
A: Absolutely. We provide full white-label service including custom logos on the pump body, branded packaging, and your own model numbers on documentation.
Q: What are your payment and shipping terms?
A: We accept T/T, L/C, and trade assurance payments. Shipping terms include FOB, CIF, and DDP to major ports worldwide. Partial shipments can be arranged for urgent orders.
Q: How do I start a bulk order or OEM project?
A: Click the button below or send us a message with your specifications, target quantity, and delivery timeline. Our sales engineering team responds within 24 hours on business days.
Ready to secure reliable hydraulic gear pump supply with full customization support?
Send us your requirements today:
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