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Quick Details

  • Standard or Nonstandard: Standard
  • Structure: Piston Cylinder
  • Power: Pneumatic
  • Body Material: Aluminum
  • Maximum Stroke: 400mm
  • Shaft Diameter: 125mm
  • Place of Origin: Guangdong, China (Mainland)
  • Model Number: JLFA-15T
  • Brand Name: JULY
  • Action type: Double action
  • Action pressure: Clean compressed air of 3-7 kg per square centimetre
  • Action-wear hydraulic oil: Anti-wear hydraulic oil of VG 68#
  • Operation temperature: 0-55 Degrees Celsius
  • Operating speed: 200-500mm/s
  • Anti-pressure of oil tank: 300 kg per square centimetre
  • Anti-pressure of pneumatic cylinder: 12 kg per square centimetre
  • Power stroke tolerance: +0.20mm 0.00mm
  • Frequency: 25-65 times
  • High pressure output: 15T

Packaging & Delivery

Packaging Details We adopt the advanced material Expansible Polystyrene(EPS) as inner packaging , which is more securer and eco-friendly than ordinary packing . Master cartons or wooden case packing in the outside .

JULY ® was founded in 1985 with more than 31 years of R&D and OEM experience.



Item JLFA Fast Speed Hydro Pneumatic Cylinder(oil and air separating type)
Action type Double action
Action pressure Clean compressed air of 3-7kg/cm²

Action-wear hydraulicoil

Anti-wear hydraulic oil of VG 68#

Operation temperature


Operating speed


Anti-pressure of oil tank


Anti-pressure of pneumatic cylinder


Prepress stroke tolerance

+1.00mm 0.00mm
Power stroke tolerance +0.20mm 0.00mm
Operation frequency 25-65 times (related to the specific pre-pressure and booster stroke)
High pressure Boosting force 1-20T(the actual output tonnage according to the customer demand)



The merits of the cylinder include fast action (faster than the standard cylinder for 50 - 100%), low-cost of after-sale maintenance and using (it is necessary to replenish after the hydraulic oil is consumed,it can be replenished by the special supplementary cup automatically ). For the shortcomings, the installation and the longitudinal length are difficult to control, so the cylinder is only installed upright (that is from top to down), the up-side down or casual angle installation are not allowed. And it is little long in the longitudinal length, so it only applies to the work situation without restrictions in longitudinal length, as a result of the above characteristics, this cylinder applies to products forming, bearing and other hardware's assembly, squeezing die and forming, as well as other fast frequency work situations. 


Product Principle

Hydro pneumatic cylinder is combined the oil pressure cylinder and booster together for taking pure gas press as the power source. It makes use of the different size of booster, the crosssection area compression ratio and Pascal energy conservation principle. Because of constant pressure, when the compression area change from small to large, the press would vary with the size, so as to raise the gas pressure to tens. Taking the prepress standard hydro pneumatic cylinder as an example: When the work gas pressed on the hydraulic oil (or working piston) surface, hydraulic oil would flow to the approach stroke cavity because of the air pressure, then the hydraulic oil would promote the workpiece to move rapidly. When the workpiece is meet the resistance larger than the gas pressure, it stops moving. At this point, the booster cavity start moving because of the signal (or pneumatic signal), then achieve the purpose of moding products!


Advantages of the hydropneumatic cylinder

Fast speed: The action speed is faster than the hydraulic drive and it is more stability than pneumatic drive;

Easy to use: The cylinder body device is simple, so it is easy to adjust the output and facilitate to use and maintain;

High output: It can reach the highest output of oil hydraulic machine under same conditions, which can not be achieved by the pure pneumatic machine;

Low price: The price is lower than the oil pressure system;

Easy to maintain: The simple structure is easier to maintain than the oil pressure system;

Low energy consumption: When continue to boost or stop moving, it does not need the motor to keep working as the hydraulic system, then the energy can be saved. And it is convenient to take the power source, so the actual energy consumption is equivalent to 10%-30% of hydraulic power system;

No leakage: Energy conversion is easy with zero leakage, so not worry about the environmental pollution;

No harm to the die: In order to meet the technology needs, stamping pressure and the work stroke can keep within the provided area without adjustable levels;

Easy installation: There are several ways to in stall according to different work environments at any angle and position;

Soft landing: Soft-stamping technology reduce the noise to protect the die;

Fault less: No temperature rising problems unlike the hydraulic system;

Small space: Space area can be less than 50% compare with normal air cylinder and hydraulic station;

Less fault : No temperature rising problems unlike the hydraulic system;


The energy loss comparison chart of hydropneumatic cylinder and pneumatic cylinder

The ratio of air consumption takes hydropneumatic cylinder and pneumatic cylinder with the same output as the example: When the working air pressure is 6kg/cm² and the diameter is 320mm, the pneumatic cylinder reaches 4800kg, but the output of hydropneumatic cylinder is 4800kg and the diameter is 80mm. When the stroke is the same 100mm(the model of pneumatic cylinder is QGB 320*100 and the hydropneumatic cylinder is JLC-80-100-10E-5T), the hydro-pneumatic cylinder consumes 2575cm³ air while the pneumatic cylinder is 15790cm³,refers to the drawing:


The examples of practical application



Packing & Shipping

We adopt the advanced material Expansible Polystyrene(EPS) as inner packaging , which is more securer and eco-friendly than ordinary packing . Master cartons or wooden case packing in the outside .

By sea By air By express
Cheapest but longest option 18~30 days by sea delivery, best for large quantity order. More expensive than sea delivery, But cheaper than express 5~7 days by air to airport. Door to door service,the fastest and most expensive one, 3~6 days by express.






Direct Factory 

1.Our first factory founded in Taiwan in 1985 . 2.Two our own,factories in China.

3.ISO 9001:2008 Certificate.  


R&D team   
Efficient and professional R&D team of more than 20 people.  


Quality is our culture    
There is a set of complete system to recording all material, production and inspection, which helps us to quickly tracking and solve any problems .



Our products and equipment apply to many fields.   
Our products are widely recognized and trusted by users.


We have been obtaining lots of patents.   
We have also won the honorary title of national high -tech and innovative enterprise in China .




Our Advantages

1. Various style for each products and completely series pneumatic products for you to choose from.

2. Large stock for fast shipping.

3. High quality with competitive price

4. Sample order & small quantity order is ok

5. Customize according to your special demand.

6. Provide free products information.

7. Reliable quality assured and active after-sell service


Service Tips

Feel free to contact us at anytime if you have any problems or questions on your purchase. We will resolve any problems such as damaged, not as described, missing parts, and lost items. All emails will be replied within 24 hours except Sunday and Chinese holidays.

If you have any other requirements or questions, welcome to  visit our website  , or just  contact us directly  . Tha nk you!  




  Q1. What is your term of payment?

A: Usually, we accept T/T, irrevocable L/C at sight. For regular orders, we prefer 30% in advance, 70% against the copy of B/L. For long term business relations, we have more advantage terms for payment.


Q2. What is your terms of delivery?

A: We accept FOB, CIF, DDU, DDP etc. You can choose the one which is the most convenient or cost-effective for you.


Q3: What is the lead time?

A: It usually takes 15 to 35 days after sample confirmation and receiving your advance payment. The specific delivery time depends on the items and the quantity of your order. If the item was nonstandard, we have to consider extra 10-15 days.


Q4: Can you produce according to the drawings?

A: We can accept customers' customization, but we need to communicate with our engineers about the production.


Q5: Can you use the spare parts that customers specify the brand?

A:  We are very willing to accept the spare parts that customers specify the brand to product assembling, but we need to charge some assembling cost.


Q6: Can you supply the product mold or other related accessories?

A: We can on behalf of the procurement according to the customer's drawings and requirements. After the product mold and accessories are installed and debugged in the machine, it will be sent to you shipped with the machine.


Q7: Do you accept the factory inspection?

A: Yes, we are very happy to accept customers to visit. We are a manufacture with a very rich R & D and production experience for many years.


Q8: How to solve the quality of after-sales?

A: We have a professional after-sales service team to solve your problem at the first time. For product quality problems during the warranty period (non-human damage), we will be maintenance or replacement for you unconditionally. For man-made damage, we only be charged for the maintenance costs.


Q9:What is your shipping method?   
A: We respect the client's choice, by sea, by air or by express.


Q10. Do you test all your goods before delivery?

A: Yes, we have 100% test before delivery. We have QC team comply with TQM, each step is in compliance to the standards. 



Thank you for your trust and support.

Click the following link, you will know more about us.


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