Nitrogen charging tool
CPU Box Type Charging Tool consists of A-alloy toolbox,multifunctional charging valve with pressure gauge,anti-seismic stainless steel pressure gauge,high-pressure hose of 1.5m length,claw wrench for accumulator maintenance,exchange joint for foreign series etc.
Nitrogen filling tool series
- CPU Box Type N2 Charging Tool
The CPU Box Type Charging Tool uses an external gas source and a charging valve to charge gas into the accumulator via a high-pressure hose. The charging process is monitored in real time by a pressure gauge, ensuring a safe and controllable charging and discharging process.
- CQJ / GCQJ Charging Tool
Charging Tool is an indispensable special tool to charge, supply、 adjust pressure and test charging pressure.its merits are made up of compact structure.high-reliability,high-pressure and impact resistance.convenience. To ase we have two type charging tool CQJ and GCQJ.
Advantages of Nitrogen charging tool
Compact Design
Compact structure ensures easy handling, storage, and operation in limited spaces.
High Reliability
Guarantees stable performance and consistent nitrogen charging accuracy.
Strong Durability
High-pressure and impact resistance ensure safety in demanding environments.
Easy Operation
Convenient design enables quick connection, pressure adjustment, and testing.
Ordering Code & Technical Parameter You Can Choose
Ⅰ CPU Box Type N2 Charging Tool
CPU
Code Name
Charging Tool
※
Pressure
10/20/31.5 Mpa
※
Connection Dimension
with Accumulator
| Model | Nom. Pressure (Mpa) |
Anti-seismic pressure gauge | Hose specification (Inner diameter x length) |
To accumulator (mm) |
Applied accumulator | |
|---|---|---|---|---|---|---|
| Scale(Mpa) | Precision(Mpa) | |||||
| CPU-16 | 10 | 0~16 | 2.5 | Φ4×1.5m | M27x1.5 | Diaphragm accumulator |
| M28x1.5 | ||||||
| CPU-25 | 20 | 0~25 | M14x1.5 | National standard accumulator | ||
| 5/16″-32UNEF | Bladder accumulator and piston accumulator |
|||||
| CPU-40 | 31.5 | 0~40 | 5/8″-18UNF | |||
| 7/8″-14UNF | ||||||
Ⅱ CQJ / GCQJ Charging Tool
CQJ / GCQJ
Code Name
N2 Charging Tool
※
Pressure
10/20/31.5 Mpa
※
National Standard :
standard connector M14*1.5/M28*1.5
Foreign Standard :
5/8-18 UNF
| Model | NOM.P (Mpa) |
Pressure gauge | Hose specification | Connection Dimension |
For Accumulator | Weight (kg) |
||
|---|---|---|---|---|---|---|---|---|
| Scale(Mpa) | Precision(Mpa) | Inner D(mm) x No.of layer |
Length (mm) |
|||||
| CQJ-16 | 10 | 16 | 2.5 | Φ8×1 | 1500 to 5000 |
M14x1.5-6g | NXQ-※/10-L/F | 1.7 |
| CQJ-25 | 20 | 25 | NXQ-※/20-L/F | |||||
| CQJ-40 | 31.5 | 40 | NXQ-※/31.5-L/F | |||||
| Model | NOM.P (Mpa) |
Pressure gauge | Hose specification | Connection Dimension |
For Accumulator | Weight (kg) |
||
|---|---|---|---|---|---|---|---|---|
| Scale (Mpa) |
Precision (Mpa) |
Inner D(mm) x No.of layer |
Length (mm) |
|||||
| GCQJ-16 | 10 | 16 | 2.5 | Φ8×1 | 1500 to 5000 |
M28x1.5-6g | Diaphragm accumulator | 1.7 |
| GCQJ-25 | 20 | 25 | ||||||
| GCQJ-40 | 31.5 | 40 | ||||||
Operating Principle of Nitrogen Charging Tool
1 . Charging tools are designed to charge、 test gas pressure or change the existed pre-charge pressure
2 . When the max pressure of accumulator charged is less than max pressure of nitrogen cylinder,relief valve is used to charge accumulator
3 . When the max pressure of accumulator charged is more than max pressure of nitrogen cylinder,nitrogen charging vehicle is used to
charge accumulator.
4 . Note: After charging,the connector between nitrogen cylinder and accumulator should be closed.and then open thebleed valve of
charging tool to exhaust completely the gas in hose,finally,unload the charging tool
Why Choose Us
We have our own production workshops and warehouses, equipped with complete production and quality testing equipment.
After-sales Service
We provide professional, accurate, patient, and efficient solutions to your hydraulic accumulator manufacturing problems.
Customer Philosophy
Our company's customer philosophy is to create irreplaceable value for our customers through high-quality products and services.
Manage
Philosophy
Our management belief is to respect value and pursue a management philosophy of autonomy and self-motivation.
High-quality Products
Innovation adds value to our products. We have a strong R&D team with the strength to face challenges and bring our ideas to market.
FAQ
The following are solutions to common problems. If you have further technical questions, please feel free to contact us.
Q1: What is the main function of an accumulator?
A: An accumulator stores hydraulic energy in the form of pressurized fluid. It helps maintain system pressure, absorb shocks, and provide additional flow during peak demand or emergency situations.
Q2: What are the common types of accumulators?
A: The most common types are bladder, piston, and diaphragm accumulators. Each type differs in structure and is selected based on pressure requirements, capacity, and application conditions.
Q1: What is included in an accumulator station?
A: An accumulator station typically includes the accumulator unit, pump, motor, control valves, pressure gauges, safety components, and a hydraulic reservoir, all integrated into a single system.
Q2: Why is an accumulator station important in hydraulic systems?
A: It stabilizes pressure, reduces energy consumption, minimizes pump wear, and ensures reliable system performance during fluctuating load conditions.
Q1: What are common accumulator accessories?
A: Common accessories include safety blocks, shut-off valves, pressure gauges, charging kits, mounting brackets, and protective covers, all of which support safe operation and maintenance.
Q2: Why are accessories necessary for accumulators?
A: Accessories enhance safety, enable proper monitoring, simplify maintenance, and ensure the accumulator operates efficiently and within design limits.
Q1: What is the function of a safety valve block?
A: A safety valve block protects the accumulator and system by controlling pressure, isolating the accumulator when needed, and safely releasing excess pressure.
Q2: What components are typically found in a safety valve block?
A: It usually includes a relief valve, shut-off valve, pressure gauge port, and sometimes a drain or discharge valve, all integrated into a compact unit for safety and convenience.
