Explosion-proof hoists must not only prevent sparks, high temperatures, and arcs generated by themselves from igniting surrounding explosive media, but also ensure the stability and safety of hoisting operations. Shenxi Machinery Co., Ltd.'s explosion-proof hoists utilize superior design and key technologies.
Key core components, including the motor, brake, reducer, and control system, are explosion-proof, with targeted explosion-proof optimization. The drive motor utilizes a dedicated explosion-proof motor with high-temperature insulating windings. A temperature sensor monitors the winding temperature in real time, automatically shutting down the machine if the temperature exceeds the specified limit. The brake shoe is made of non-sparking material to prevent sparks from friction with the brake wheel. The brake wheel surface is hardened, and the dual braking system prevents overspeeding caused by a single brake failure. The control circuit utilizes a low-voltage design, electrical components are certified explosion-proof, wiring terminals utilize explosion-proof sealed connectors, the wire rope is coated with an anti-static coating, and the sheave and drum pads are constructed of non-metallic wear-resistant materials to minimize sparks from collisions. The safety protection system proactively prevents faults and dangers and is equipped with “multiple safety protection devices” to achieve “early detection of faults and early blocking of dangers”. Overspeed protection is provided by a speed sensor, which monitors the hoisting speed in real time. When it exceeds 15% of the rated speed, an emergency brake is triggered to prevent wire rope breakage or equipment loss of control due to overspeed. A tension sensor is installed on the drum or wire rope end for overload protection. When the load exceeds 10% of the rated value, the drive power is immediately cut off and the brake is applied to prevent motor overload, overheating, or wire rope breakage. A rope break catcher is installed on the hoist container for rope break protection. If the wire rope breaks, the catcher mechanically locks the container onto the guide rail to prevent it from falling. Limit switches are installed at the upper and lower ends of the hoist for limit protection. When the container approaches the end, it automatically decelerates and forces the machine to stop at the limit position to prevent "top-slip" or "squatting." Explosion-proof temperature sensors are installed in key areas such as the motor windings, brake wheel, and bearings to monitor the temperature in real time. If the limit is exceeded, an alarm is issued and the machine is shut down.
Shenxi Machinery's explosion-proof hoists have been certified and verified by standards and regulations, complying with GB 3836. Series, GB 50058, MT/T 1097 standards, and international standards such as IEC 60079 series and ATEX, making them legal for use in flammable and explosive environments.
The key to explosion-proof hoists can be summarized as "explosion-proof first, safety first, and compliance guaranteed." Shenxi Machinery Co., Ltd.'s products utilize multiple safety protection systems to prevent operational failures. Combined with compliance certification and regular maintenance, they ultimately achieve the goal of "safe and stable operation in flammable and explosive environments." They are trustworthy and a top choice!
