The referenced J-5022D information gives 500 bar, equivalent to 50 MPa, and 22 litres per minute. Keep those figures attached to their documented configuration and definition. A gauge range, a peak claim and an operating-pressure specification are not interchangeable values. Before comparing quotations, identify which value each supplier is actually stating.
Neither figure guarantees a result on an unknown substrate or inside a pipe. The proposed nozzle, hose arrangement, water supply and permitted working method affect the system and task. Higher pressure can damage a surface and is not automatically the more productive choice. Qualified assessment and the correct operating documentation remain essential for high-pressure work.
Where a main-water-pipe cleaning system is discussed, review the delivery arrangement, specialised tools and site organisation separately from the base machine. Keep evidence of the actual configuration and outstanding checks with the proposal. Do not infer a pipe-cleaning capability, permitted material or performance result solely from the two headline machine figures.
Keep the measurement definition in the comparison
Create separate columns for documented operating pressure, flow, configuration revision, working end, inlet conditions and unresolved application questions. The conversion between 500 bar and 50 MPa is a unit relationship, not two different capabilities. Nor does a headline flow figure prove the same condition at every possible delivery arrangement.
For a water-main project, preserve the distinction between the base machine and the coordinated delivery system with specialised tooling. Review the actual proposal rather than assuming the two headline values approve an application. Any comparison should retain the source document and its scope, so peak, gauge-range and operating figures cannot silently become the same specification.
Applying the method to a site problem
For restoration or stubborn deposits, identify the substrate, contamination, vulnerable areas and drainage. Establish the proposed result and acceptable surface condition by a suitable trial.
Manufacturing and configuration reference
Zhaoqing coordinates assembly, configuration checks and delivery preparation around the agreed duty. Process illustrations show the workflow. Confirm individual models, quantities and tests from the project documents.
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Use model-specific documentation for technical discussions
Wanshenglong headquarters handles sales, development and technical application enquiries for Jinjie equipment. Guangzhou supports demonstrations and Zhaoqing prepares the agreed configuration. Compare each model using its own specification revision and record the site measurements still required.
What to record on site
The documented operating point is 500 bar (50 MPa) and 22 L/min. Confirm the pump model, drive rating, transmission, hoses and protection separately. Check the supplied revision at handover and train operators on that configuration.
How site conditions affect equipment performance
Hydraulic power in kW is pressure difference in MPa multiplied by flow in L/min, divided by 60. For 50 and 22, this gives about 18.3 kW of theoretical hydraulic power. Check the J-5022D motor nameplate and drive specification separately.
Pressure washers · Jinjie J-5022D technical information · Shenzhen headquarters and technical support · Guangzhou demonstrations and customer support · Zhaoqing manufacturing and delivery
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Shenzhen Wanshenglong Cleaning Products Co., Ltd. | Jinjie J-5022D pressure washer. Check the model specification and site conditions. Updated 2026-11-6.
Checks after reading
- Site area, routes and narrowest access
- Floor, dust, oil, debris or pipe-blockage type
- Daily frequency and continuous working time
- Power, water, wastewater, consumables and service conditions
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Understanding the J-5022D specification: 500 bar and 22 L/min — frequently asked questions
Can a comparison table settle the purchase?
Use the table to identify differences and decide what to verify on site. Keep specification revisions and test conditions alongside the figures. Record trial observations and cost scope separately.
Is a larger configuration always a safer choice?
Not always. Extra width, size or power can increase access, storage, supply and maintenance requirements. Size the machine for the actual task.