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GLTech Coal Mine intrinsically safe rotary encoder
PRODUCT INTRODUCTION ![]()
BQH12 mine intrinsically safe rotary encoder (hereinafter referred to as the encoder) is mainly used to monitor the rotation angle and number of turns of the shaft.
The encoder communicates through the RS485 bus and has the characteristics of stability, reliability and convenience.

1. Ambient temperature: (0~+40) ℃
2. Relative humidity: ≤98% (25 ℃)
3. Ambient atmospheric pressure: (80~106) kPa
4. Dimensions: 84 mm × 80 mm × 62 mm
5. Shell material: stainless steel
6. Weight: 0.5 kg
7. Rated working voltage: 12 VDC, allowable fluctuation range (9~14) V DC
8. Rated operating current: ≤50 mA
9. The angle measurement range is 0.0~360.0, and the basic error is ±0.5°
10. The measurement range of the number of turns: 0~4096 (turn)
11. Digital signal type: RS485 communication, baud rate 115200 bps, signal amplitude ≤ 5 V
ADVANTAGES ![]()




WHY CHOOSE US ![]()
GLTech is an international high-tech company with a total investment of 42.4 million $, factory plant area of 17,000 m2, and has more than 500 employees in China and nearly 300 foreign employees.Our products have been exported to USA ,UK, Israel, Russia, India, Pakistan, Uzbekistan, Philippines, Indonesia, Vietnam, Turkey,Brazil etc, and have been widely praised by customers. We also welcome OEM and ODM orders.China-based GLTech is an international high-tech enterprise committed to becoming a high-end equipment enterprise with core R&D and manufacturing technologies.GLTech is a high-tech enterprise, an AAA-level credit enterprise and has been approved as a software enterprise with certified software products. In recent years, it has won many honorable titles, like "the most promising enterprise in electronic information technology development", "a model of integrated informatization and industrialization in Henan Province", "an enterprise with advantages in intellectual property in Henan Province", "one of the first key IoT enterprises in Henan Province", "a pilot enterprise for digitalization in the information technology project of the manufacturing industry in Henan Province", and the winner of the Zhengzhou Mayor's Quality Award. It is one of the 27 among Top 100 Enterprises assessed by the State Administration of Work Safety. GLTech has successively passed ISO900 certification, ISO14000 certification, OHSAS18000 certification, and the Information System Integration and Services Qualification Certification (Grade II). It is also the first enterprise in Henan Province to pass the CMMI Maturity Level 5 Certification. Persisting in "forging ahead with innovation", GLTech is committed to becoming a high-end equipment R&D and manufacturing enterprise with core technologies.










Q1:Are you a manufacturer or trading company?
We are List Enterprise in China (Stock code:300480) with 28 years maunfacturing experience.
Q2: Can I have a sample order?
Yes, Of course you can . we welcome sample order for your testing and checking products quality.
Q3: What is the shipping time?
C: Small Qty order needs 2-5 working days, big Qty order usually needs 10-15 working days after
payments arriving. That's depends on order Qty.
Q4: Do you do OEM,ODM or OBM?
Yes, OEM,ODM and OBM are welcome, and we have professional sales to communicate the details with you.
Q5:What's your MOQ?
1pcs.
Q6:What is your advantage?
1) Fast response for market trend, customer feedback and technical support
2) New products launch regularly base on our strong RD team and market demands
3) Strong supply chain, guarantee the competitive price of our products in the market
4) Adequate production capacity
5) Strict quality control system
6) Flexible OEM/ ODM service.
7) Regular stock for RTS
Q7:How about the terms of payment?
Supported T/T,Paypal,Alibaba online payment,Western Union,etc. Of course we can discuss on this.
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