NT3000 Heavy-Duty Diesel Injection Pump Calibration Bench

For diesel service workshops across Africa and Southeast Asia, the NT3000 fuel injection test bench delivers the rugged reliability needed for maintaining heavy-duty in-line pumps and distributor pumps found in construction equipment, agricultural tractors, and commercial trucks. Built with a heavy cast-iron bed and frequency conversion drive, this bench handles 12-cylinder pump testing across a 0–4000 RPM range with output power options from 5.5kW to 18.5kW. Whether you are rebuilding VE pumps for Japanese excavators or calibrating Bosch mechanical governors for European haulers, the NT3000 brings laboratory-grade accuracy to the workshop floor.

The NT3000 performs comprehensive fuel injection pump testing across all major parameters. It measures each cylinder delivery at any rotational speed using dual-range graduated cylinders (45ml and 150ml) to verify uniformity across all plunger sets. The bench determines oil supply start points and interval angles with precision, critical for timing adjustments on in-line injection pumps. For distributor pump systems, the NT3000 measures oil return volume across speed ranges, checks internal pressure at specified RPMs, and tests the electromagnetic valve functionality with built-in 12V/24V DC power supply. Mechanical governor performance is verified through speed control response testing, while supercharging compensator behavior can be adjusted to match engine load requirements. Additional capabilities include advance device angle verification, injection pump body sealing tests, and travel stroke measurement-all essential for complete pump overhaul.

Parameter	Specification
Motor Power Options	5.5kW / 7.5kW / 11kW / 15kW / 18.5kW
Main Shaft Speed Range	0 – 4000 RPM (variable)
Testable Cylinders	Up to 12 cylinders
Measuring Cylinders	45ml and 150ml (dual-range)
Fuel Tank Capacity	60 Liters
Fuel Temperature Control	40℃ ± 2℃ (forced cooling optional)
Feed Fuel Pressure	Low: 0–0.4Mpa / High: 0–4Mpa
Drive Shaft Center Height	125mm
DC Power Supply	12V / 24V (for solenoid valves)
Electrical Supply	3-Phase 380V/50Hz (220V optional)
Drive Technology	Frequency conversion, high torque, low noise

The NT3000 is engineered for continuous operation in demanding service environments. Its cast-iron base and widened bed design absorb vibration, maintaining test accuracy during high-torque runs. The frequency conversion drive system delivers stable speed regulation from idle to maximum RPM, with auto-protection features that guard against overload and overheating. The human-machine interface displays critical parameters-RPM, temperature, fuel pressure-in real time, allowing technicians to store test programs for repeat adjustments. An auto-sucking oil supply line enables direct testing of fuel supply pumps, including VE-type pumps, while the optional forced cooling system maintains oil viscosity within the 40±2℃ specification for consistent results. The 12-cylinder collection tray rotates 180 degrees for efficient workflow during multi-cylinder delivery measurements.

This bench supports repair operations for the full spectrum of diesel engines operating in African mining, Southeast Asian agriculture, and Middle Eastern logistics fleets. It services Bosch, Denso, and Delphi pump systems, covering in-line pumps (A-type, P-type, PS7100 series) and distributor pumps (VE, DPA, VR types). Common applications include Cummins and Caterpillar engine pumps, Isuzu and Mitsubishi truck systems, agricultural pumps from Yanmar and Deutz, and construction equipment from Komatsu and Hitachi. The bench adapts to various pump mounting configurations, making it a versatile investment for workshops serving mixed fleets where multiple engine brands are in daily operation.

Q1: Which pump types can the NT3000 actually test in real workshop conditions?
A: The NT3000 handles both in-line pumps (all plunger configurations up to 12 cylinders) and distributor pumps including VE, DPA, and VR types. It supports mechanical governor adjustment and distributor pump internal pressure measurement at specified speeds-tasks required for Bosch, Denso, and Delphi systems.

Q2: What electrical supply options are available for regions with unstable power?
A: The standard configuration runs on 3-phase 380V/50Hz, with 220V models available upon request. Power options range from 5.5kW to 18.5kW, allowing workshops to select the appropriate unit for their available supply.

Q3: How does the forced cooling system benefit pump calibration accuracy?
A: The optional forced cooling maintains test oil at 40℃ ± 2℃, preventing viscosity changes that skew delivery measurements. Without temperature stabilization, fuel density variations can produce inconsistent calibration data, particularly during extended test runs.

Q4: What spare parts support is available for remote workshop locations?
A: The NT3000 uses commercially available frequency converters and standard sensors. Suppliers typically maintain stocking programs for measuring cylinders, drive couplings, and electrical components to support after-sales service across Africa and Southeast Asia.

Q5: Can this bench test common rail system components?
A: While primarily designed for mechanical injection systems, the NT3000 supports testing of common rail high-pressure pumps (CP1/CP3 types) for return flow and internal pressure diagnostics, making it a transition tool for workshops moving into CRDI service.

 

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