This machine is more suitable for industrial power areas in factory grounds and around equipment, where electric operation facilitates centralized rinsing at fixed points, and the arrangement of water supply and drainage is designed to remove loose dirt.
250 bar (25 MPa) level pressure21 L/min flow rate380V electric power
Established in 2004 | Site-trial discussion | Service support across China
01 Intended use
For industrial power areas, the electric operation is convenient for centralized scheduling at ground washing points; at the same time, attention should be paid to water consumption, continuous water supply, and the collection of residual contaminants.
Check motor, pump, inlet and outlet water connections, and hose gun separately; accessories are configured according to the delivery list of this model.
What do you want to tackle first with pressure washing?
Residues remain after loosening
Sand, dirty water and loose residues require sustained transport flow.
Operators waiting for equipment on intensive-cleaning projects
During concentrated large-area cleaning, inadequate equipment/hose organisation can leave operators waiting.
Explosion-proof requirements can be misunderstood
An available custom explosion-proof version does not make the standard machine explosion-proof.
Site conditions, configuration and selection
Where is the cleaning taking place, and what are the conditions? Determine the configuration together.
The following is a selection reference, which does not replace original technical data, on-site verification, and trial washing.
01 Factory Area Floor
Focus on verifying waste and waste discharge capacity.
02 Logistics Platform
Focus on the passage and hose route.
03 Surrounding of equipment
Focus on verifying materials and sensitive parts.
04 Vehicle Cleaning Station
Focus on checking the operational water source.
Field or task
Configuration that requires attention
J-2521D Selection Judgment
Factory floors
Waste and discharge capacity; pressure, flow, and tool compatibility
Test the cleaning with materials, dirt, and site conditions, and do not rely on the maximum pressure promise for cleaning effectiveness.
Logistics platform
Passage and hose route; pressure, flow rate, and working attachment matching.
Test the cleaning with materials, dirt, and site conditions, and do not rely on the maximum pressure promise for cleaning effectiveness.
Equipment surroundings
Material and sensitive parts; pressure, flow, and working attachment matching.
Test the cleaning with materials, dirt, and site conditions, and do not rely on the maximum pressure promise for cleaning effectiveness.
Vehicle cleaning point
Job water source; pressure, flow rate, and nozzle matching.
Test the cleaning with materials, dirt, and site conditions, and do not rely on the maximum pressure promise for cleaning effectiveness.
Before selection, it is recommended to confirm the following four items:
Identify the surface, the soil and any sensitive parts or areas that must stay dry.
Available power, distribution conditions, and job protection.
Continuous water source, job distance, and wastewater discharge direction.
Daily tasks, pipe gun attachments, and usage and maintenance conditions.
Accessories and task selection
Standard single lance; choose cleaning accessories by task
The long pressure lance is standard. Surface cleaners, multi-nozzle flushing and rotary nozzles are optional, subject to project and order.
Standard single-lance cleaning
The long pressure lance targets surface cleaning.
Match nozzles to material, soil and distance to help reduce repeated manual cleaning.
Surface cleaner (optional)
Select accessories for the hard-floor task.
Plan for material, water and drainage; confirm the project configuration and order.
Multi-nozzle flushing / rotary nozzle (optional)
Select accessories for coverage and soil conditions.
No nozzle count or simultaneous multi-lance capability is assumed. Discuss special configurations by project.
TECHNICAL SPECIFICATIONS
Technical specifications
Review day-to-day configuration first. Expand the full specifications for more detail.
Key parameters, view at a glance
Flow21L/min
Machine dimensions1050×770×840mm
Overall weight132kg
Maximum pressure300bar(30MPa)
Normal pressure250bar(25MPa)
Power source9.2 kW copper-wound motor / 380 V 50 Hz
Full specifications for View
Key operating figures
Maximum pressure
300bar(30MPa)
Normal pressure
250bar(25MPa)
Flow
21L/min
Pump configuration
Italian AR industrial precision ceramic plunger pump
Rotation speed
1440r/min
High-pressure hose
15m
Maximum inlet water temperature
60℃
Drive and electrical system
Power source
9.2 kW copper-wound motor / 380 V 50 Hz
Machine configuration
Overall weight
132kg
Machine dimensions
1050×770×840mm
How do these figures apply to your site?
A high-pressure washer cannot be judged solely by the pressure number. It is necessary to confirm the cleaning object, type of dirt, material, flow rate, power source, water supply, hose length, and daily continuous operating time simultaneously.
Components and their functions
Practical meaning
A closer fit for washing tasks needing water to carry sand and residues away.
Key checks
Supply volume, wastewater, power, explosion-proof requirements, area, continuous run time and any simultaneous-operator requirement.
Suitable / unsuitable for boundary
When does J-2521D fit, and when should another approach be considered?
Candidate applications
Concentrated washing during initial intensive cleaning
More sand and residues
Suitable supply and wastewater conditions
Need 21 L/min material-transport flow
Assess a different solution
Insufficient water supply
Light-to-medium routine washing only
Explosion-proof requirements unconfirmed
Multi-operator configuration unconfirmed
Comparison of similar models
How to choose between J-2521D and similar configurations.
First check your power and water supply conditions, then compare the working pressure, flow rate, and attachments to determine which model is more suitable.
Confirm the configuration of this machine separately during selection.
Confirm the configuration of this machine separately during selection.
Confirm the configuration of this machine separately during selection.
Flow rate record
Confirm the configuration of this machine separately during selection.
Confirm the configuration of this machine separately during selection.
Confirm the configuration of this machine separately during selection.
Power Records
Confirm the configuration of this machine separately during selection.
Confirm the configuration of this machine separately during selection.
Confirm the configuration of this machine separately during selection.
The pressure and flow rate need to be compared separately; a higher flow rate does not mean that all contaminants are easier to remove. When selecting the model, consider the specific configuration and operating conditions together with the data provided for each machine type.
Look at the picture to understand the equipment.
Overall appearance and configuration of J-2521D
First, understand the configuration and operational division by examining the overall appearance of the machine; the position and configuration of internal components can be further understood in conjunction with the machine's documentation.
Appearance of J-2521D product
Look at the picture to understand the equipment.
Components and their functions
01 frame and transport
Combine the complete appearance of the entire machine to check the equipment movement route and operational position.
02 Power Unit
Check the on-site power supply conditions and delivery protection configuration for the electric solution.
03 High-Pressure Pump
Check the pump type and operating conditions against the model nameplate and manual.
04 Water supply connection
Check the water source, connections, and continuous water supply conditions before work.
05 High-Pressure Pipeline
Check the delivery hose length, fittings, and pipeline pressure rating separately.
06 jet nozzle
Combine the cleaning material and task to confirm the applicable working attachment configuration.
Operating principle
The operation process of J-2521D is divided into four steps.
This is a function flow description and is not intended as the internal water circuit cross-section or component location diagram.
01 Water supply preparation
First, check the water source, inlet conditions, and sustainable water supply.
02 drive and pressure generation
The motor drives the pump operation, and the operating conditions should be checked against the specifications of this machine.
03 Pressure adjustment and piping
Organized by matching piping and working attachment for flushing, no assumption of valve setting.
04 jetting and collection
Arrange the work method according to the material, isolate splashing and collect the wastewater.
Professional selection
Pressure, flow rate, and site conditions should be considered together.
Do not take the maximum value as the continuous operating value, and do not take the theoretical hydraulic power as the rated power.
Pressure and flow rate
Working pressure, maximum pressure, and adjustable range are different for different diameters; they should be verified separately based on the original settings of this model and actual operating conditions.
Power and Environment
Check the power supply and protection according to the voltage, power, and random instructions; the presence of power does not mean that any line is applicable.
Water supply and working attachment
Continuous water supply, pipeline pressure resistance, and nozzle need to be matched; do not derive multi-gun capability or fixed area efficiency based on the entire machine's flow rate.
Construction details
Pump, drive, inlet and outlet connections
Through the overall view of the machine, understand the structure of the J-2521D host, the spray gun, the high-pressure hose, and the water inlet connection, which facilitates communication of the configuration with your tasks.
Pump / drive / lance and hose
Check industrial pump, gauge and lance/hose arrangement
Inspect the drive, pump, gauge and pressure-lance arrangement; configuration follows current sales documentation.
Inlet / outlet / hoses
Confirm high-flow supply and hose connections
Before purchase, check inlet/outlet, hose length, supply conditions and site drainage.
Operating cost
Equipment usage cost, how should it be calculated?
When there are no actual data on human resources, energy, and maintenance, the energy saving ratio is not publicized.
Procurement and supporting investment
Record the entire machine, the hose attachment, the on-site water supply, and the power supply configuration.
Operating costs
Record the actual labor hours, water, and electricity costs, taking into account the collection and discharge of waste.
Consumables and maintenance
Record piping, nozzle, sealing, and power maintenance according to this model's instructions, without estimating uniformly
Total operating cost=purchase and accessories+labor during usage period+water and electricity or fuel+consumables maintenance+waste disposal.
When comparing, use the same task, usage duration, and cost range; separate the equipment investment from daily expenses.
MAINTENANCE
Include inspection and maintenance in each task.
Before maintenance, check the user manual for this machine to confirm the type of oil, maintenance schedule, and operating procedures; if there are any unclear points, bring the model number and usage conditions to consult after-sales service.
Water supply and connection
Check the water intake requirements and visible connections according to the instructions, and record any leaks, loosening, or abnormalities.
High-pressure hose and working attachment.
Check the hose, fittings, and spray nozzle condition, without using web images for reconnection.
Power and work records
Verify the power supply and protection according to the instructions, record the operation time and abnormalities, and contact after-sales service.
Other accessories not included in the standard configuration (optional)
Confirm against the project configuration and order. Flushing-nozzle count needs separate checking and does not establish simultaneous multi-lance capability.
The standard high-pressure hose is 10 meters. The original pipe length record of 15 meters is still retained; the actual delivered length and applicable range should be checked according to the project configuration and order separately.
Delivery and after-sales service
Operating and maintaining the machine after delivery
Delivery, use, and maintenance can be communicated in advance; service scope, schedule, and costs are confirmed based on the actual project and agreement.
01 Delivery inspection
Verify the model, configuration, random documents, and appearance according to the order.
02 Operator training
As per the delivery equipment instructions, introduce the operation, shutdown, and precautions.
03 Operator guidance
Verify the usage method based on the task, water and electricity conditions, and on-site conditions.
04 Parts supply
Verify applicable accessories based on model, version, and original component specifications
05 On-site repairs
After fault communication, service is arranged according to the actual service scope and agreement.
06 Scheduled on-site maintenance
Schedule maintenance based on usage conditions and service agreements.
— FAQ
You may also be interested in J-2521D
Make judgment based on the tasks, configuration, and usage conditions of this model.
What does 21 L/min mean?
This is the current page flow record for this model. On-site, it is necessary to synchronize and verify the continuous water supply, working attachment, and drainage conditions; it cannot be directly converted into the cleaning area per hour.
How to prioritize between J-2515D?
First compare their flow rate, water supply, and task requirements; sludge and sand discharge versus attached dirt are different tasks, and cannot be decided solely by one number.
What preparations are needed for logistics platform operations?
Record the vehicle's time period, travel route, waste and drainage directions, to avoid interference between the high-pressure hose and vehicle and pedestrian traffic.
Can a higher flow rate be directly used with multiple nozzles?
You cannot calculate the number of nozzles based on the total flow rate of the entire machine. Multiple working attachments require separate pumps, nozzles, piping, and split conditions.
What documents should be provided during selection?
Cleaning object, surface material, dirt, no-water areas, working distance, water supply and drainage conditions. For electric solutions, check the on-site power supply.
How to confirm standard and optional configurations?
Verify each item on the order and delivery list. The long brush, angle nozzle, and base hose are separate from the additional hose length, rotating head, and floor scrubber, and are not determined by the image.
Where should daily maintenance start?
Retain the J-2521D name plate, configuration sheet, and random instructions. Check power supply and protection, inlet water, piping, and spray gun. Oils, cycles, and disassembly are according to the machine's instructions. The website does not provide its own cycle.
What should be done if there is abnormal water discharge or pressure?
Follow the random instructions of J-2521D for shutdown processing, record the water source, fittings, pipelines, and abnormal phenomena, then contact after-sales. Do not disassemble the pipe under pressure, and do not modify the pressure regulating or protection components according to the web image.
From the site of origin.Is the equipment suitable? Let's look at the usage conditions together.
Tell us the cleaning object, the dirt, and the water supply conditions, and together see how the J-2521D is configured.