CR718 High-Pressure Common Rail System Test Bench

The CR718 High-Pressure Common Rail System Test Bench bridges conventional mechanical fuel systems with the latest generation of electronically governed HPCR technology, delivering a unified diagnostic workstation for modern diesel service operations. More than a simple leak tester, this system provides in-depth electronic performance evaluation-covering solenoid inductance measurement, armature dynamic stroke (AHE) verification, and comprehensive BIP (Beginning of Injection) response time analysis. From overhauling traditional mechanical inline pumps for agricultural applications to decoding piezoelectric injector IMA codes for contemporary truck fleets, the CR718 delivers a data-driven approach to injection diagnostics. A genuine BOSCH CP3.3 high-pressure oil pump, high-resolution flow sensors, and an embedded industrial computer with remote upgrade functionality elevate this test bench into a certified calibration center for the service bay. The outcome includes enhanced engine output, lowered emissions, and substantially diminished warranty claim rates on remanufactured injectors and pumps.

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Brand-specific diagnostic stations become redundant with the CR718, which provides exceptional adaptability across the full diesel injection spectrum. Fully automatic detection is delivered for electromagnetic injectors from all major OEMs-BOSCH, DELPHI, DENSO, and SIEMENS (VDO) -along with the increasingly common piezoelectric injectors found in high-output powerplants. Remanufacturers particularly benefit from the advanced coding functionality: the bench automatically issues BOSCH QR codes, DENSO QR codes, DELPHI C21/C31 correction values, and SIEMENS (VDO) IIC codes, facilitating precise flow matching during ECU reflashing. Evaluation parameters extend well beyond conventional flow rates; the inductance of the injector solenoid valve and the dynamic stroke of the injector armature (AHE) are both verifiable, uncovering mechanical degradation that standard leak-off tests frequently miss . HPCR pump diagnostics are equally thorough, with support for all common rail pumps including the specialized DENSO HP0 and the robust CAT 320D pump, ensuring the hydraulic heart of the system operates to specification .

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Real-world diesel workshop demands guided the modular design of the CR718, which services on-highway trucks, off-road mining equipment, and agricultural machinery alike. While the base unit delivers a complete CRDI testing solution, the optional modules unlock extended heavy-duty capabilities. Workshops maintaining heavy trucks and industrial engines can add the optional EUI/EUP (Electronic Unit Injector/Pump) package to test pump nozzles and unit pumps from BOSCH, CAT, CUMMINS, DELPHI, Benz, and Volvo, including the more complex dual-solenoid valve injectors . The optional CAT HEUI (Hydraulically actuated Electronic Unit Injector) package supports injectors used in CAT C7/C9/C-9/C3126B and the larger CAT3408/3412/FORD 6.0L engines. Additionally, legacy fleet support is integrated through the ability to test traditional mechanical inline pumps and VE pumps, allowing seamless transitions between rebuilding a classic Bosch P-pump and coding a contemporary Delphi injector on a single machine. This consolidated capability ensures robust return on investment for independent repair facilities and fleet maintenance operations.

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The following table details the core hardware and operational specifications that guarantee repeatable, reliable results in high-volume shop environments.

Category	Specification / Parameter	Options Available
Control System	Embedded Industrial PC	Color LCD touch screen, OEM data library preloaded; Wi-Fi for remote assistance and online system upgrades .
Hydraulic Power	Genuine BOSCH CP3.3 Pump	DRV valve enables precise regulation up to 2800 BAR .
Pressure Accuracy	Rail Pressure Control	Precision of ± 0.5 BAR for tight tolerance calibration .
Flow Measurement	High-Precision Flow Sensor	Range: 0.008 to 4 L/min; Accuracy: 0.3% for injection volume quantification .
Drive Motor	Power Variants	7.5KW / 11KW / 15KW / 18.5KW / 22KW (field-selectable) .
Electrical Supply	Voltage Compatibility	3-Phase 220V or 380V configurations supported .
Speed Range	Motor RPM	0 to 4000 RPM, fully variable for cranking to high-speed simulation .
Thermal Control	Oil Temperature	Maintains 40°C ± 2°C; Air-cooled or Forced cooling optional to prevent thermal drift .

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Investment in the CR718 eliminates the costly "re-test" cycles that undermine diesel repair profitability. Rather than swapping suspect injectors between cylinders to isolate a misfire-a time-intensive and imprecise approach-technicians can pinpoint specific faults directly on the bench. Whether a slow-opening solenoid valve identified through the BIP check or a worn armature revealed by the AHE dynamic stroke test, the root cause is identified before the component is reinstalled. This diagnostic precision directly reduces engine tear-down time and elevates first-time fix rates. The built-in QR code generation further ensures that correction data for rebuilt injectors aligns perfectly with the engine ECU, preventing the all-too-common complaint of "rough running after rebuild" and the associated comebacks. By consolidating traditional pump testing with advanced HPCR capabilities, a single capital investment handles 100% of the workshop's diesel injection workload, optimizing floor space and shortening technician training curves.

Q1: How are OEM-specific injector codes generated on the CR718?
A: The system automatically produces BOSCH QR codes, DENSO QR codes, DELPHI C21/C31, or SIEMENS (VDO) IIC codes upon test completion, ensuring precise flow compensation during ECU programming.

Q2: Is common rail pump testing automated on this bench?
A: Yes. Mounting the pump and selecting its model from the library initiates a fully automated sequence evaluating sealing, pressure regulation, solenoid response, and delivery rates against OEM standards.

Q3: What is required to activate EUI/EUP or HEUI testing modules?
A: These expansions typically involve mechanical adapters paired with a software activation code. The mainframe supports these additions without requiring a full machine replacement.

Q4: How does the CR718's digital flow measurement compare to gravimetric methods?
A: The 0.3% accuracy digital sensor eliminates human timing and weighing errors, delivering repeatable, logged data for quality assurance and customer reporting.

Q5: What power and cooling options are available for installation?
A: Power ratings from 7.5KW to 22KW are offered, compatible with 3-phase 220V or 380V. Cooling choices include standard air cooling or a higher-capacity forced cooling system for hot shop environments.

 

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