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Chengmao locking screw Service Introduction

Chengmao Tools Industrial Co., Ltd. is Taiwan locking screw supplier and manufacturer with more than 46 years experence. Since 1977, in the Hand Tools Industry, Chengmao has been offering our customers high quality locking screw production service. With both advanced technology and 46 years experience, Chengmao always make sure to meet each customer's demand.

Chengmao welcome you to view our high quality products and feel free to Contact Us.

Result 1 - 14 of 14

Magnetic Type Automatic Screw Feeding Machine

CM-30M

The SEALS CM-30M Magnetic-Type Automatic Screw Feeder is designed to provide high efficiency and precision in handheld screw fastening applications. Utilizing a push-pull jaw mechanism and a magnetically driven bit, the screw is instantly ejected and securely held at the tip, fully exposed for quick and accurate alignment with the screw hole. This design is especially ideal for challenging environments where traditional jaws cannot reach—such as deep holes, wiring areas, curved surfaces, or tight spaces near walls—enabling precise fastening even under constrained conditions. The electric screwdriver set features a lever-activated, brushless torque control design, offering high precision, easy torque adjustment, and long-term durability. Without carbon brushes, the driver remains cool during extended use and provides a more comfortable experience for the operator. The screw feeding unit is built to be rugged and durable, with a simple and compact structure that allows for quick installation and easy adjustment. Most importantly, setup can be completed by a single operator with minimal effort.
Magnetic Type Automatic Screw Feeding Machine

CM-20M

The CM-20M is a handheld automatic screw fastening solution that integrates vibratory screw alignment, air-blow screw feeding, and trigger-activated fastening operation. This configuration allows operators to maintain a stable cycle time even when working at mobile stations or in multi-angle fastening applications. After alignment, screws are delivered to the fastening point via air-blow feeding and positioned by a magnetic driver bit, ensuring stable alignment and improved positioning accuracy during the initial fastening stage. During operation, the operator simply pulls the trigger, causing the driver bit to advance the screw and complete the fastening process. Since this fastening method does not require the front sleeve or fixture to press against the workpiece surface, it effectively reduces the risk of scratches or surface marks. This makes the CM-20M especially suitable for cosmetic parts, painted components, anodized surfaces, or products with surface protection requirements. It should be noted that the positioning mechanism of the CM-20M relies on the driver bit’s ability to hold the screw magnetically. Therefore, only screws with magnetic properties are applicable. For non-magnetic screw materials—such as most stainless-steel screws—a push-down type fastening model without magnetic dependency is recommended to ensure stable feeding and fastening performance.
Torque Linear Arm ( 182-561mm working radius)

TA-300S

Seals Torque Reaction Arm is designed to avoid repetitive work and excessive use of arm injuries in daily work. We provide Torque Reaction Arm to improve the ergonomic manufacturing process to eliminate instant torque and weight loads After clamping the screwdriver, the Torque Reaction Arm can be operated back and forth, left and right, up and down, and can rotate freely at 360°. It can always support the screwdriver. The maximum working diameter is 1122mm. Various screw locking operations can be carried out within the range to reduce work The failure rate ensures that the screwdriver locks the screws at a vertical angle, improves the quality of screw locking, and reduces product quality problems such as operator errors and defective locking screws. This Torque Reaction Arm can effectively reduce the space requirement of the workplace. With the help of the spring lifting force of the Spring Balancer, the suspended arm frame is in a weightless state, which reduces the labor status of personnel, improves labor production efficiency, and creates a safe and efficient working environment. It can be directly fixed on the work surface (recommended) and a C-shaped table clamp is provided, two installation methods.
Torque Linear Arm ( 236-744mm working radius)

TA-600S

Seals Torque Reaction Arm is designed to avoid repetitive work and excessive use of arm injuries in daily work. We provide Torque Reaction Arm to improve the ergonomic manufacturing process to eliminate instant torque and weight loads After clamping the screwdriver, the Torque Reaction Arm can be operated back and forth, left and right, up and down, and can rotate freely at 360°. It can always support the screwdriver. The maximum working diameter is 1488mm. Various screw locking operations can be carried out within the range to reduce work The failure rate ensures that the screwdriver locks the screws at a vertical angle, improves the quality of screw locking, and reduces product quality problems such as operator errors and defective locking screws. This Torque Reaction Arm can effectively reduce the space requirement of the workplace. With the help of the spring lifting force of the Spring Balancer, the suspended arm frame is in a weightless state, which reduces the labor status of personnel, improves labor production efficiency, and creates a safe and efficient working environment. It can be directly fixed on the work surface (recommended) and a C-shaped table clamp is provided, two installation methods.
Wall-mounted Torque Reaction Arm(Spring Balancer Type)

HTR-20

Seals HTR series mounts on aluminum extrusions or walls, no longer limited to countertops. Seals Torque Reaction Arm, It is based on the design principle of avoiding repetitive work and overuse of the arm in daily work. Eliminates torsional torque and weight loads, creating a safe working environment.
Wall-mounted Torque Reaction Arm(Spring Balancer Type)

HTR-25

Seals HTR series mounts on aluminum extrusions or walls, no longer limited to countertops. Seals Torque Reaction Arm, It is based on the design principle of avoiding repetitive work and overuse of the arm in daily work. Eliminates torsional torque and weight loads, creating a safe working environment.
Wall-mounted Torque Reaction Arm(Tool Balancer Type)

PHTR-20

PHTR-20 is a wall-mounted torque reaction arm system designed for workstations where desktop installation is not feasible. It is paired with the TR-350 articulated torque reaction arm (hanger, shaft, and base not included). Configured with a Tool Balancer, the system maintains the stability of the wall-mounted support structure and torque transmission mechanism while providing a more cost-effective configuration option.
Wall-mounted Torque Reaction Arm(Tool Balancer Type)

PHTR-25

PHTR-25 is a wall-mounted torque reaction arm configuration paired with the TR-650 Torque Reaction Arm (hanger, shaft, and base not included). It is suitable for workstations requiring a larger working range or extended coverage distance. Configured with a Tool Balancer, the system maintains the stability of the wall-mounted structure and torque transmission mechanism while providing a solution that balances working range and cost efficiency.
Position Control Torque Reaction Arm-A2(working radius max R439mm)

TRPC-350A2

Seals TPRC Series Position Control Torque Reaction Arm, Powerful tools for production management, The main control screw lock position sequence, guaranteed quantity And each screw has torque to reach, And monitoring when errors and exceptions occur, Report and Review.
Position Control Torque Reaction Arm-A2(working radius max R652mm)

TRPC-650A2

Seals TPRC Series Position Control Torque Reaction Arm, Powerful tools for production management, The main control screw lock position sequence, guaranteed quantity And each screw has torque to reach, And monitoring when errors and exceptions occur, Report and Review.
Position Control Torque Reaction Arm-A2(working radius max R900mm)(128°)

TRPC-900A2

Seals TPRC Series Position Control Torque Reaction Arm, Powerful tools for production management, The main control screw lock position sequence, guaranteed quantity And each screw has torque to reach, And monitoring when errors and exceptions occur, Report and Review.
Position Control Torque Reaction Arm-A3(working radius max R439mm)

TRPC-350A3

Seals TPRC-A3 Series Position Control Torque Reaction Arm, Powerful tools for production management, The main control screw lock position sequence, guaranteed quantity And each screw has torque to reach, And monitoring when errors and exceptions occur, Report and Review.
Position Control Torque Reaction Arm-A3(working radius max R652mm)

TRPC-650A3

Seals TPRC-A3 Series Position Control Torque Reaction Arm, Powerful tools for production management, The main control screw lock position sequence, guaranteed quantity And each screw has torque to reach, And monitoring when errors and exceptions occur, Report and Review.
Position Control Torque Reaction Arm-A3(working radius max R900mm)(128°)

TRPC-900A3

Seals TPRC-A3 Series Position Control Torque Reaction Arm, Powerful tools for production management, The main control screw lock position sequence, guaranteed quantity And each screw has torque to reach, And monitoring when errors and exceptions occur, Report and Review.