SGP1A32F1H5-R Shimadzu Gear Pump 33.2cc 20.6MPa

Product Overview

The SGP1A32F1H5-R is a high-pressure Shimadzu SGP1 Series external gear pump in the nominal size-32 configuration.

Shimadzu officially defines the SGP1 family as high-pressure hydraulic gear pumps using special cast-iron bodies designed to withstand surge pressure and demanding temperature and speed conditions. The manufacturer specifically highlights stable performance in difficult operating conditions such as high temperature and low speed. (shimadzu.co.jp)

According to Shimadzu’s official SGP1 technical catalog, the size-32 configuration has a 33.2 cm³/rev geometric displacement, 20.6 MPa maximum rated pressure, 24.5 MPa instantaneous maximum pressure, 400–3000 rpm speed range, -0.02 to 0.2 MPa inlet-pressure range, and a 4.2 kg standard reference weight. (shimadzu.co.jp)

The nominal size “32” therefore should not be advertised as exactly 32.0 cc/rev. The correct OEM geometric displacement is 33.2 cm³/rev. (shimadzu.co.jp)

The SGP1 construction includes a cast-iron body, aluminum-alloy front and rear covers, alloy-steel drive and driven gears, special-alloy side plates and bushes, and sealing components. (shimadzu.co.jp)

For the complete SGP1A32F1H5-R configuration, Shimadzu’s official ordering code identifies:

• F = rear-cover side port
• 1 = flange port
• H = horizontal two-bolt mounting
• 5 = SAE 10-tooth spline shaft
• R = clockwise rotation

This makes the full ordering code critical for genuine interchangeability. (shimadzu.co.jp)

Our replacement units are developed around the original Shimadzu displacement, rotation, mechanical interface and pressure class and undergo 100% simulated operating-condition testing before delivery.

Technical Specifications

SGP1A32F1H5-R

• Model: SGP1A32F1H5-R
• Brand: Shimadzu
• Series: SGP1
• Product Type: High-Pressure External Gear Pump
• Nominal Size: 32
• Geometric Displacement: 33.2 cm³/rev
• Maximum Rated Pressure: 20.6 MPa / 206 bar
• Instantaneous Maximum Pressure: 24.5 MPa / 245 bar
• Minimum Speed: 400 rpm
• Maximum Speed: 3000 rpm
• Inlet Pressure: -0.02 to 0.2 MPa
• Control: Fixed Displacement
• Drive: Mechanical Rotary Drive
• Housing: Cast Iron
• Front/Rear Covers: Aluminum Alloy
• Drive Gear: Alloy Steel
• Driven Gear: Alloy Steel
• Side Plates: Special Alloy
• Bushes: Special Alloy
• Seals: Nitrile Rubber
• Port Position: F — Rear-Cover Side Port
• Port Type: 1 — Flange Port
• Mounting: H — Horizontal Two-Bolt Mounting
• Shaft: 5 — SAE 10-Tooth Spline Shaft
• Rotation: R — Clockwise
• Standard Size-32 Reference Weight: 4.2 kg

These performance specifications and model-code definitions are taken from Shimadzu’s official SGP1 documentation. (shimadzu.co.jp)

SGP1A32F1H5-L

• Model: SGP1A32F1H5-L
• Brand: Shimadzu
• Series: SGP1
• Geometric Displacement: 33.2 cm³/rev
• Maximum Rated Pressure: 20.6 MPa
• Instantaneous Maximum Pressure: 24.5 MPa
• Minimum Speed: 400 rpm
• Maximum Speed: 3000 rpm
• Inlet Pressure: -0.02 to 0.2 MPa
• Control: Fixed Displacement
• Housing: Cast Iron
• Port Position: F — Rear-Cover Side Port
• Port Type: 1 — Flange Port
• Mounting: H — Horizontal Two-Bolt Mounting
• Shaft: 5 — SAE 10-Tooth Spline Shaft
• Rotation: L — Counterclockwise

Shimadzu officially defines L as counterclockwise and R as clockwise rotation. (shimadzu.co.jp)

SGP1-32F1H1-L

• Model: SGP1-32F1H1-L
• Brand: Shimadzu
• Series: SGP1
• Nominal Size: 32
• Geometric Displacement: 33.2 cm³/rev
• Maximum Rated Pressure: 20.6 MPa
• Instantaneous Maximum Pressure: 24.5 MPa
• Minimum Speed: 400 rpm
• Maximum Speed: 3000 rpm
• Inlet Pressure: -0.02 to 0.2 MPa
• Control: Fixed Displacement
• Port Position: F — Rear-Cover Side Port
• Port Type: 1 — Flange Port
• Mounting: H — Horizontal Two-Bolt Mounting
• Shaft: 1 — SAE 13-Tooth Spline Shaft
• Rotation: L — Counterclockwise
• Standard Size-32 Reference Weight: 4.2 kg

The H1 and H5 versions use different SAE spline counts and therefore should not be treated as automatically interchangeable. (shimadzu.co.jp)

SGP1A30D2H5-R

• Model: SGP1A30D2H5-R
• Brand: Shimadzu
• Series: SGP1
• Nominal Size: 30
• Geometric Displacement: 29.9 cm³/rev
• Maximum Rated Pressure: 20.6 MPa / 206 bar
• Instantaneous Maximum Pressure: 24.5 MPa / 245 bar
• Minimum Speed: 400 rpm
• Maximum Speed: 3000 rpm
• Inlet Pressure: -0.02 to 0.2 MPa
• Control: Fixed Displacement
• Housing: Cast Iron
• Port Position: D — Rear Port
• Port Type: 2 — G Thread
• Mounting: H — Horizontal Two-Bolt Mounting
• Shaft: 5 — SAE 10-Tooth Spline Shaft
• Rotation: R — Clockwise
• Standard Size-30 Reference Weight: 4.1 kg

The exact displacement for nominal size 30 is 29.9 cm³/rev, not 30.0 cm³/rev. (shimadzu.co.jp)

SGP / SGP1 / SGP2 Series Context

The original keyword set contains:

• SGP1
• SGP1A
• SGP2
• SGP
• Hydraulic Gear Pump
• Forklift Hydraulic Pump

These terms are useful for semantic SEO but should not all be forced into the main title.

Shimadzu officially specifies:

• SGP1: 16–36 cm³/rev
• SGP1 Maximum Rated Pressure: 20.6 MPa
• SGP2: 20–52 cm³/rev
• SGP2 Maximum Rated Pressure: 24.5 MPa

Both families use cast-iron pump bodies, while SGP2 additionally uses a specialized ceramic-related sealing structure. (shimadzu.co.jp)

Shimadzu also officially identifies hydraulic gear-pump applications in:

• Industrial Vehicles
• Construction Machinery
• Agricultural Machinery
• Special-Purpose Vehicles

Therefore, Forklift Hydraulic Pump is a highly relevant supporting SEO term for the page body. (shimadzu.co.jp)

Key Technical Advantages

1. Exact 33.2 cm³/rev Displacement

Shimadzu specifies 33.2 cm³/rev for SGP1 size 32.

At 3000 rpm:

33.2 × 3000 / 1000 = 99.6 L/min

This is theoretical displacement flow before volumetric losses and should not be treated as guaranteed delivered flow. (shimadzu.co.jp)

2. Special Cast-Iron Housing

Shimadzu uses a special cast-iron body for the SGP1 high-pressure series, providing a robust structure for surge-pressure and high-load applications. (shimadzu.co.jp)

3. Alloy-Steel Gear Pair

The SGP1 construction documentation specifies alloy-steel drive and driven gears. Gear material and tooth-surface accuracy have direct influence on load capacity, efficiency, leakage and durability. (shimadzu.co.jp)

4. Special-Alloy Side Plates and Bushes

Special-alloy side plates and bushes support the gear set and help control operating clearances, friction and wear under high hydraulic loads. (shimadzu.co.jp)

5. 20.6 MPa Rated / 24.5 MPa Peak Pressure

For SGP1 size 32:

• 20.6 MPa = Maximum Rated Pressure
• 24.5 MPa = Instantaneous Maximum Pressure

The 24.5 MPa value should not be treated as a continuous operating pressure. (shimadzu.co.jp)

6. 400–3000 rpm Speed Range

The official size-32 speed range is 400–3000 rpm, supporting engine-, PTO- and other mechanically driven hydraulic systems. (shimadzu.co.jp)

7. Precisely Defined Mechanical Interface

For SGP1A32F1H5-R, the official ordering code precisely identifies:

F + 1 + H + 5 + R

as:

rear-cover side port + flange port + horizontal two-bolt mounting + SAE 10-tooth spline + clockwise rotation.

This level of code definition is valuable when matching replacement pumps in international aftermarket applications. (shimadzu.co.jp)

Application Areas

Shimadzu officially identifies hydraulic gear pumps for:

• Industrial Vehicles
• Construction Machinery
• Agricultural Machinery
• Special-Purpose Vehicles

(shimadzu.co.jp)

Forklifts

• Diesel forklifts
• LPG forklifts
• Material-handling vehicles
• Main forklift hydraulic systems

Shimadzu historical corporate information also identifies hydraulic equipment demand in China from construction machinery and industrial vehicles such as forklifts. (shimadzu.co.jp)

Construction Equipment

• Wheel loaders
• Excavator auxiliary hydraulic systems
• Compact construction equipment

Agricultural Machinery

• Tractors
• Harvesters
• Agricultural implements

Industrial Hydraulic Systems

• Hydraulic power units
• Mobile hydraulic power systems
• Industrial hydraulic stations
• Material-handling equipment

Expert Maintenance Tips

Verify the Complete Model Code

For SGP1A32F1H5-R, do not identify the pump simply as “SGP1-32.”

Port position, port type, mounting, shaft type and rotation all affect actual interchangeability. (shimadzu.co.jp)

Do Not Mix H1 and H5 Shafts

SGP1-32F1H1-L uses a:

13-tooth SAE spline

while SGP1A32F1H5-L/R uses a:

10-tooth SAE spline

Even with the same displacement and pressure class, the shaft interface must be verified before replacement. (shimadzu.co.jp)

Verify L/R Rotation

Shimadzu defines:

• L = Counterclockwise
• R = Clockwise

Incorrect rotation identification can cause incorrect hydraulic-port functionality, so the original pump must be checked before installation. (shimadzu.co.jp)

Control Inlet Conditions

The official SGP1 inlet-pressure range is:

-0.02 to 0.2 MPa

Blocked suction filters, undersized suction lines, air ingress or excessive fluid viscosity can compromise inlet conditions. (shimadzu.co.jp)

Do Not Run Continuously at 24.5 MPa

The 24.5 MPa figure is the instantaneous maximum pressure, not the continuous rated pressure. System design should use 20.6 MPa as the key continuous-duty pressure reference. (shimadzu.co.jp)

Check Coupling Alignment

For forklift and mobile-equipment installations, inspect:

• Shaft spline engagement
• Coupling alignment
• Rotation direction
• Mounting bolts
• Port sealing

Excessive misalignment can increase shaft and bush loading.

Clean the Hydraulic Circuit During Replacement

Inspect:

• Hydraulic oil
• Suction filter
• Return filter
• Reservoir
• Suction line
• Coupling

Metal particles from a failed pump can rapidly damage the replacement gear set, side plates and bushes.