Introducing the QMB Series Explosion-proof Valve Electric Actuator, expertly engineered for the rigorous demands of the Coal Mining Industry. Our cutting-edge actuator is meticulously designed to deliver unparalleled performance and safety in environments where reliability is paramount. Experience the pinnacle of innovation with Changzhou Xinneng Automatic Control Equipment Co., Ltd, where advanced technology meets industry-leading expertise to ensure your operations run smoothly and securely.
1 Overview
Introducing the QMB mining explosion-proof small valve electric device, meticulously crafted to excel under the demanding coal mine conditions. Engineered for precision control, it seamlessly integrates with ball, butterfly, and a variety of other valves. When paired with high-pressure, small-diameter special valves, it becomes an essential tool for coal mine fire protection, dust suppression, and automated control in underground central water pump rooms, including jet and vacuum pump management.
The QMB valve electric device is designed for efficiency and convenience, boasting a compact and lightweight form. It connects effortlessly to DCS systems, ensuring seamless automatic control.
2. Classification
The product range includes: Basic, Intelligent, Explosion-proof Basic, and Explosion-proof Intelligent types, each tailored for specific operational needs.
3. Working environment and main technical conditions
(1) Power supply: Standard three-phase AC380V, 50Hz;
Optional power configurations: three-phase AC400V, 415V, 660V available in 50Hz and 60Hz.
For versatility, single-phase AC220V and AC110V are also supported, compatible with both 50Hz and 60Hz frequencies.
DC options include 24V, 48V, and 84V for tailored applications.
(2) Ambient temperature: Standard range from -20ºC to +60ºC; with optional extension from -40ºC to +70ºC to meet diverse environmental demands.
(3) Relative humidity: Accommodates up to 95% at 25°C, ensuring robust performance in humid conditions.
(4) Working environment: The ordinary type is ideal for non-hazardous areas; for environments with explosive or corrosive gases, the flameproof model (ExdIIBT4) is recommended, covering IIA,
and IIB explosive gas mixtures, groups T1-T4 for enhanced safety.
(5) Protection level: Reliable IP65 and IP67 ratings, with IP68 available for special orders, providing superior environmental resistance.
(6) The motor is designed for high efficiency with short-time duty: rated for 10 minutes of operation (extendable to 15-30 minutes for special orders), and features durable Class F insulation.
(7) Anti-corrosion coating: Utilizes a high-temperature, electrostatic spray of anti-corrosion epoxy plastic powder for enduring protection.
(8) Main functional features of intelligent electric actuators
The mechatronic design prioritizes compactness and lightweight construction for ease of use.
Equipped with a cutting-edge digital integrated chip, offering robust functions and unparalleled precision.
Features a non-intrusive design for easy parameter settings and debugging via knobs or infrared remote control, eliminating the need to open the box cover. This ensures quick, simple operation with enhanced sealing.
Utilizes an absolute encoder for stroke displacement, ensuring valve position accuracy, strong anti-interference capabilities, superior precision, and extended service life.
The LCD interface provides clear subtitles in both Chinese and English, enhancing usability.
Offers advanced functionalities including travel limit protection, torque protection, stall alarms, overheat protection, signal failure protection, power phase loss protection, and automatic phase sequence identification and correction.
Intelligent types are available in intelligent switch type, intelligent adjustment type, and a cutting-edge advanced intelligent type.
(9) Intelligent switch type input signal: Capable of accepting 24VDC pulse or level signal.
Output is facilitated through relay, with a contact rated capacity of 5A, 250VAC, or 5A, 30VDC.
Includes output position analog signal capabilities: 4-20mA for precise monitoring.
Intelligent regulation supports analog input signal: 4-20mA for smooth adjustments.
Ensures analog output signal accuracy: 4-20mA.
Switch input signal: flexible with 24VDC pulse or level signal for versatile integration.
Switching output signal: This cutting-edge device boasts a relay output with a remarkable contact rated capacity of 5A, 250VAC, and 5A, 30VDC, ensuring robust performance and reliability.
Basic error: ≤1: Our state-of-the-art actuator delivers precision with a basic error margin that is less than or equal to 1, demonstrating our commitment to accuracy and excellence.
The advanced intelligent type can support ESD emergency override protection, bus communication, Bluetooth, wireless control, and other functions. This versatile actuator is engineered to offer unparalleled control with its support for ESD emergency override protection, seamless bus communication, and cutting-edge Bluetooth and wireless control capabilities, elevating your operational efficiency and safety to new heights.
4. QMB Electric Actuator Main Models & Characteristics
| Model |
Torque
(N · m) |
Stem
diameter
(mm) |
Speed Ratio |
Output Speed
(r/min) |
Open/Close
Time
(S) |
Motor Power
(W) |
Motor Currency
(A) |
Weight
(kg) |
| QMB3.5-1.25G |
35 |
11x11 |
46 |
1.25 |
12 |
10 |
0.6 |
8 |
| QMB5-1.25G |
50 |
11x11 |
46 |
1.25 |
12 |
15 |
0.6 |
8 |
| QMB9-0.85G |
90 |
28 |
46 |
0.85 |
18 |
40 |
1 |
20 |
| QMB15-0.6G |
150 |
28 |
46 |
0.6 |
25 |
40 |
1 |
20 |
| QMB25-0.6G |
250 |
28 |
46 |
0.6 |
25 |
60 |
1.2 |
20 |
5. QMB Size and Connection Dimensions
QMB3.5/5
QMB9/15/25
6. QMB Flange Connection Dimensions
QMB3.5/5
| Flange |
Suggested
Actuator |
d3 |
n-d4 |
d7 |
H |
h1 |
| F05 |
QMB3.5
QMB5 |
50 |
4-M6 |
11x11 |
16 |
1 |
QMB9/15/25
| Flange |
Suggested
Actuator |
d1 |
d2
(f8) |
d3 |
n-d4 |
d7 |
H |
h |
h1 |
| Start |
Max |
| F05 |
QMB9 |
65 |
35 |
50 |
4-M6 |
/ |
28 |
40 |
3 |
3 |
| F07 |
QMB9
QMB15
QMB25 |
90 |
55 |
70 |
4-M8 |
/ |
28 |
40 |
3 |
3 |
| F10 |
QMB25 |
125 |
70 |
102 |
4-M10 |
/ |
28 |
40 |
3 |
3 |
Note: The QMB9/15/25 series proudly come with the F07 as the standard feature, ensuring exceptional compatibility and reliability.
Q1: Do you have any standard international certificates?
*We have ISO9001, ISO14000, CE, UL and other certifications. Our products also have sepcial deisgn patents.
Q2: Are there any special certification requirements for this product?
*There are certification requirements for explosion-proof actuators in China. They must have explosion-proof certificates and production licenses issued by the National Explosion-proof Electrical Inspection Center. By 2020, the production license will be cancelled and converted to 3C certification. Coal mine products have mining product safety mark certificates (referred to as coal safety certification) and mining product explosion-proof certificates. This coal mine certification product is our company's advantage product. At present, in the electric actuator industry, only 6 actuator manufacturers in China have such mining valve actuator certificates. Domestic coal mines must have products with this mining safety certificate to be used on pipelines underground in coal mines. Therefore, compared with other ground products, there will be less competition in the coal mine sector. Now the company's export of coal mine products is also rising year by year.
Q3: If this product can be operated using WiFi, are there any anti-theft wall measures?
*AK smart series has GPRS mobile phone card wireless control function, which is a special optional function with name, password and verification code to ensure security. This function is not widely used in China at present. It will be considered in some special areas where control cables cannot be laid but there is a signal network.
Q4: Does the factory have a CO Form E record?
*Yes
Q5: How long is the warranty period for this product?
*One year based on the date of manufacture.
Q6: How to start calculating the warranty period?
* According to the date of manufacture (the year and month of manufacture are on the product nameplate).
Q7: What are the advantages of your company? (Price, special accessories, product quality)
* The company's main products are electric actuators, which are equipped with valve products. Our company was established for 13 years. We founded the (Changneng) brand electric actuators and later founded the (AUKOMA) brand high-end series electric actuators. After more than ten years of market operation, the product quality and market sales are stable, and we have a certain reputation in the domestic industry. Our brand is medium in China, and our product series is relatively comprehensive. We have Z, Q, CND, AK series products that can compete with domestic first-line products, and AK series products that can replace international brands. There are great advantages in cost performance.
Let's talk about what this electric actuator is used for. The electric actuator controls the opening and closing of the valve, and the valve controls the opening and closing of the pipeline. Valves include manual valves, electric valves, pneumatic valves, electro-hydraulic valves, etc. With the improvement of industrial automation, more and more automatic control valves such as electric valves or pneumatic valves are used on pipelines that originally used manual valves. Electric valves require our electric actuators, which means the actuators are the brains of electric valves. After using electric actuators, the valves can be switched on and off through on-site electric buttons or remote computer systems, thereby controlling the on and off of the pipelines.
Q8: Does the price change every month or is it fixed?
*The price is fixed. Without special reasons such as a sharp increase in raw materials, the price will generally not change.
Q9: Is it in stock or produced after orders? If the production is after the order, how long will it take to produce? Delivery time?
*Export products have different requirements for materials, packaging, etc. They will be produced according to orders.
*Generally, it takes about 10 days for less than 50 units and 20 days for less than 100 units. The production cycle of AK high-end series will be slightly extended.
Q10: What material is this product made of?
*The product has two types of materials: iron shell and aluminum shell. The aluminum shell is small and the small size of the AK intelligent series is aluminum shell, and the conventional model and large size are cast iron. The large size has a large output torque, and the cast iron shell is used because cast iron has a strong pressure bearing capacity.
Q11: Are we currently doing OEM with other brands?
*We do OEM for several domestic units, and we aslo accpet OEM oreders.
Q12: Have we done any relatively large and well-known enterprise projects?
*Our products are used in major domestic steel mills, power plants, water plants (sewage, tap water), coal mine water treatment, coal mine gas extraction, petroleum and petrochemicals, etc.
Q13: Does this product have a service life?
*Yes, the service life is related to the switching frequency of the valve. The valve is installed on the pipeline, and the electric actuator is a device that controls the valve switch. If the valve switching frequency is very high, the actuator will be used more frequently, and the internal gears and turbines, worms, nuts, etc. will have certain wear, but it is much longer than the service life of the valve. Some valves on pipelines need to be replaced after a few years. Generally, the actuator will be replaced at the same time as the valve. At present, our products are used on pipelines, and many actuators from more than 10 years ago are also in normal use.
Q14: Can parts be replaced if the product is damaged?
*It can be replaced. Generally, the limit switch that controls the valve opening and closing is a high-frequency component and may need to be replaced.
Q15: How much does the factory produce per month?
*1,200-1500 sets per month.
Q16: What is the payment methods accepted?
*We accpet TT, Paypal, West Union, World First, Alipay, Wechat Pa
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