12V Small Hydraulic Power Unit - Technical Documentation
 PreAsion®
12V Small Hydraulic Power Unit
12V Small Hydraulic Power Unit
Product Description

The 12V small hydraulic station power unit is mainly used in hydraulic systems that require low-voltage direct current drive. It is commonly found in fields such as automotive repair, logistics handling, agricultural machinery, and experimental equipment.

Product Gallery
Product Features
Compact structure

Compact & Organized Structure

The structure is well-organized and compact, saving space and facilitating integration with equipment.

High-quality solenoid valve

High-Quality Solenoid Valve

High-quality solenoid valve with high frequency, less prone to jamming, and long service life.

Low voltage operation

Safe Low Voltage Operation

Working at low voltage is safer compared to high-pressure systems, reducing the risk of electric shock and suitable for use in narrow spaces or environments with personnel operation.

Versatile applications

Versatile Applications

Applicable to various small-scale hydraulic scenarios, such as car tailboards, lifting platforms, stackers, dump trucks, etc., providing reliable power output.

Product Parameters
Voltage 12V
Power 800W
Tank capacity 6.3QT (6L)
Rated pressure 16MPa
Number of valves One
Rated flow 4QT/Min (3.8L/Min)
Material Iron and Copper
Weight 13.9LBS (6.3kg)
Usage Instructions
  • Connect the 12V direct current.
  • Pay attention to whether the voltage of the motor and the solenoid valve matches that of the power supply.
  • When refueling, filter the hydraulic oil. The components such as the cylinder and the pipelines must be kept clean.
Fault Identification and Troubleshooting Methods
  • Motor fails to start: Check whether the connection circuit is correct.
  • Motor starts but hydraulic cylinder does not move:
    • Oil level in tank is too low. Please refill to specified level.
    • Oil viscosity is too high or too low. Use recommended hydraulic oil grade for current season and temperature.
    • Suction filter is clogged. Please clean or replace filter.
    • Solenoid valve energized or stuck, causing oil to unload through valve. Inspect electrical circuit or clean solenoid valve.
  • During unloading, the hydraulic cylinder does not descend or descends too slowly:
    • Solenoid valve is not energized. Check the electrical circuit.
    • Solenoid valve input voltage is incorrect. Check voltage and ensure it meets standard values.
    • Solenoid valve filter screen is clogged. Remove, clean, or replace it.
  • Motor continues to run after switch is turned off:
    • Incorrect wiring connection. Inspect and reconnect wires properly.
    • Start switch is burnt out. Power off, inspect, and replace the start switch.
  • Excessive system noise:
    • Air is trapped in the system. Operate continuously for several cycles to purge the air.
    • Avoid prolonged operation under extreme pressure conditions.
  • Important Note: The working pressure of the hydraulic power unit is preset at the factory. Do not adjust it arbitrarily.
Item Included (054584): 12V Small Hydraulic Power Unit × 1
Shipping & Handling Details
Default Shipping Cost or Free Shipping Information: Default shipping cost or free shipping service is only for the customers from Canada or the lower 48 United States by Canada Post, USPS or the UPS Ground. Customers from other areas or needs other shipping ways, please contact us.
Buyers from Guam, Puerto Rico, Virgin Islands, American Samoa, Alaska, Hawaii, PO Boxes, APO/FPO addresses or other countries/areas, there WILL be extra shipping costs, please contact us for more detailed information.
Please make sure your address is valid for both UPS and USPS services. Any costs incurred because of incorrect or undeliverable address should be undertaken by buyer.
Handling Time: Shipping is usually made in 1-3 business days after payments cleared. Orders are processed from Monday-Friday; Not on the weekends & public holidays.
Sales tax / Customs duties: Any sales taxes or Customs duties are not included. If came out, they must be undertaken by the buyer.
Damage In Shipping: Email or call us First! We will work with you to get the case resolved in the fastest method.
Return / Refund
If you are not 100% happy with your purchase, please contact Us. Please don't directly opened a request or case without informing us, or else, we will do some discounts on the warranty and other sales-services later on. Hope for your understanding.
Returns & Exchanges
All returns must be made within 14 days of delivery date. Items must be in new, unused condition, with all original materials included with the shipment. A partial refund may be applied for opened or damaged items, depending on the condition.
Items returned under the buyer's remorse: The return shipping fee must be covered by the buyer; The original shipping cost will also be deducted from the refund. 15% restocking fee of the items purchase price will be charged.
Returns that are the result of our seller's error: Buyer will receive a full refund of the item as well as shipping charges
All returns require a RA (Return Authorization) number that will be given by our seller. Please contact with us at first for more details.
Defective & Damaged Products
If product was received damaged or not as described, please send us some pictures or videos, so we could well understand your problem, then solve them for you ASAP. Besides, it's much helpful for us to claim with UPS, remind our related department to pay much more attention to packaging later on. Hope for your understanding.
Replacement or refund of defective or damaged products can only be returned in exchange for the exact same product, or else, the purchase price will be refunded back to your original payment method.
If an item is received damaged, customer service must be contacted within 7 days of receiving your item. All returns require a RA (Return Authorization) number as above.
Payment
eCheck Issues: Payments via eCheck do not clear immediately. Usually you will wait 5-7 days after checkout for it to clear. Then we will arrange shipments for you.
Warranty & Feedback
6 months' warranty for the machines, not for the consumables. We stand behind our products all the item, so even if your warranty period has expired, you can still seek for service or technical support from us with low cost.
Any warranty shipping cost to us is responsible by buyer.
Any shipping cost to buyer is responsible by the seller.
We committee to the customer satisfaction and want to bring you the best purchase experience. If there is any problems, please contact us ASAP. If not, please leave us a positive feedback as it's very important for us. Thanks very much.


On Dec 4, 2025 at 21:43:56 PST, seller added the following information:

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