In electric forklifts, stackers, and AGVs, hydraulic systems operate under very different constraints compared with traditional stationary power units.
Instead of focusing on maximum output, these systems must balance compact size, efficiency, and low noise within limited installation space.

Industry Context: Unique Constraints of Mobile Equipment

Mobile equipment used in warehouses, supermarkets, and cold storage environments faces several design challenges:

Limited space for hydraulic power packs within battery compartments or chassis structures
High sensitivity to energy consumption due to battery-powered operation
Strict requirements for low noise and clean operation in indoor environments

These conditions make hydraulic component selection more critical than in conventional industrial systems.

Problem: Downsizing Conventional Pumps Does Not Solve the Issue

A common approach is to scale down pumps originally designed for large power units.
However, this often leads to new problems:

Reduced efficiency at low speed, resulting in sluggish lifting and tilting response
Higher noise levels, which become more noticeable in indoor environments
Pump size still too large, complicating installation, piping, and system layout

This indicates that small mobile equipment requires purpose-built hydraulic solutions rather than scaled-down designs.

Solution: FG0 Small-Displacement Internal Gear Pumps

FG0 internal gear pumps are increasingly used as dedicated hydraulic power sources for electric forklifts and AGVs.

Key Technical Parameters

Displacement: 3.8–24 mL/r
Rated pressure: 31.5 MPa
Maximum pressure: up to 35 MPa
Speed range: 200–3000 r/min

This parameter range matches the requirements of compact, low-flow hydraulic systems while maintaining sufficient pressure for load handling.

Design Advantages for Mobile Equipment

FG0 pumps are designed to meet the core needs of small hydraulic systems.

Compact Integration

Small displacement and compact structure allow installation within battery compartments, frames, or modular power units

Low Noise Operation

Internal gear design reduces pulsation and noise, improving operator comfort and meeting indoor usage requirements

Stable Performance at Low Speed

Efficient operation across a wide speed range supports smooth transitions between precision handling and fast movement

Practical Maintenance Characteristics

With reasonable filtration, FG0 pumps show good tolerance to oil contamination, supporting predictable maintenance intervals

Engineering Value: Designed for Small Systems, Not Adapted from Large Ones

The key advantage of FG0 is not maximizing a single parameter, but providing a balanced solution tailored to small mobile equipment.

It enables:

Efficient use of limited installation space
Reduced noise levels for indoor operation
Stable hydraulic response under varying speeds
Simplified integration into electric vehicle platforms

Summary

For electric forklifts, stackers, and AGVs, hydraulic systems must deliver performance within strict space, efficiency, and noise constraints.

FG0 internal gear pumps provide:

Compact size for flexible installation
Stable high-pressure performance for load handling
Low noise characteristics for indoor environments
Reliable operation with predictable maintenance

By replacing scaled-down conventional pumps with purpose-built FG0 units, mobile equipment manufacturers can achieve quieter, more efficient, and better-integrated hydraulic systems.