HC-PTO-3AC PTO Pump, Cast Iron

Description

Product Overview

The HC-PTO-3AC PTO pump is engineered from high‑grade cast iron, delivering exceptional durability and resistance to wear in the harshest industrial environments. The solid cast‑iron housing protects internal components from impact, corrosion, and abrasive particles, extending the service interval and reducing total cost of ownership.

One of the standout features of this pump is its self‑adjusting wear plates. These plates automatically conform to the two unequal‑size gears under fluid pressure, creating a reliable seal that compensates for wear and thermal expansion. This design eliminates the need for frequent manual adjustments and ensures consistent performance throughout the pump’s lifespan.

With compact dimensions of 9 × 11 × 9 inches and a weight of 45.45 lb, the HC-PTO-3AC fits easily into tight spaces while providing the power required for demanding applications. The pump ships with a standard inlet port adapter (SAE O‑ring boss to hose barb) and an outlet port adapter (SAE O‑ring boss to female pipe threads), enabling quick and secure connections to existing hydraulic lines.

The pump is rated for a maximum operating pressure of 2250 psi and an oil temperature limit of 180 °F. Exceeding this temperature may indicate an undersized reservoir or insufficient heat‑exchanging capacity, prompting the user to evaluate system cooling requirements. A relief valve must be installed externally to protect the pump and downstream components from over‑pressure conditions.

Designed to operate at up to 100 % of standard PTO shaft speeds—540 rpm and 1000 rpm—the HC-PTO-3AC delivers predictable flow rates and torque characteristics across a range of machinery. Its compatibility with standard PTO interfaces makes it a versatile choice for retrofits and new equipment builds alike.

Usage

This pump excels in industrial hydraulic systems where reliable power transmission is essential. It is commonly employed in material handling equipment such as conveyors, lift tables, and hydraulic presses, providing smooth and consistent motion under heavy loads.

Agricultural operators appreciate the HC-PTO-3AC for its ability to drive PTO‑mounted implements, including grain augers, balers, and sprayers. The pump’s robust construction tolerates the dusty, high‑vibration conditions typical of field work, while its self‑adjusting wear plates reduce maintenance downtime during peak harvest periods.

Construction machinery, including excavators, backhoes, and compact loaders, benefit from the pump’s high pressure capability and rapid response to load changes. The included adapters simplify integration with existing hydraulic circuits, allowing technicians to replace or upgrade pumps with minimal system disruption.

Why Choose Us

Prince Manufacturing Corporation has a legacy of over three decades in hydraulic pump design and production. Each HC-PTO-3AC unit undergoes rigorous quality‑control testing, including pressure‑hold, flow‑rate, and temperature‑cycling assessments, to guarantee that it meets or exceeds industry standards.

Customers receive comprehensive after‑sales support, including technical assistance, spare‑part availability, and a limited warranty that covers material defects and workmanship. Our service team is trained to diagnose issues quickly and provide solutions that keep your equipment operating at peak efficiency.

We also offer engineering consultation for custom applications, helping you select the optimal pump size, pressure rating, and ancillary components such as heat exchangers or relief valves. This collaborative approach ensures that the HC-PTO-3AC integrates seamlessly into your system architecture.

Key Features

• Cast‑iron housing provides superior durability and resistance to corrosion, extending pump life in harsh environments.
• Self‑adjusting wear plates create a tight seal automatically, reducing maintenance frequency and ensuring consistent performance.
• Standard inlet and outlet adapters simplify installation and compatibility with existing hydraulic lines.
• Rated for 2250 psi and 180 °F operation, delivering reliable power for high‑pressure applications.
• Dedicated technical support and warranty coverage give customers confidence and peace of mind.

FAQ

What maintenance is required for the self‑adjusting wear plates?

The wear plates are designed to self‑adjust with fluid pressure, so routine inspection is typically limited to checking for external damage or debris buildup. It is recommended to verify proper lubrication levels and replace the plates only if excessive wear or scoring is observed during a scheduled service interval.

Can the pump be used with fluids other than standard hydraulic oil?

Yes, the HC‑PTO‑3AC can operate with a variety of compatible hydraulic fluids, provided the fluid’s viscosity and temperature characteristics fall within the pump’s design limits. Always consult the manufacturer’s fluid compatibility chart to ensure optimal performance and avoid premature wear.

How do I determine the correct relief valve setting for my system?

The relief valve should be set slightly above the pump’s maximum operating pressure—typically around 2300 psi for the HC‑PTO‑3AC—to protect the pump and downstream components from over‑pressure events. Selecting a valve with an adjustable setting allows fine‑tuning based on specific system requirements.

Is the pump compatible with variable‑speed PTO drives?

The pump is rated for standard PTO speeds of 540 rpm and 1000 rpm. While it can operate on variable‑speed drives, performance curves will change with speed variations. It is advisable to consult the pump’s flow‑rate chart and adjust system parameters accordingly to maintain desired pressure and flow characteristics.

What warranty coverage does Prince provide for this pump?

Prince offers a limited one‑year warranty covering defects in materials and workmanship. The warranty includes repair or replacement of the pump, as well as technical support for installation and troubleshooting. Extended warranty options are available through authorized distributors.