Overview
The handheld rebar threading machine is a specialized power tool designed for on-site threading of steel reinforcement bars. Unlike stationary models, its compact design allows workers to operate it directly at construction sites, significantly improving efficiency in rebar preparation. These machines are widely used in civil engineering projects, particularly in high-rise buildings, bridges, and tunnels where threaded rebar connections are required. Modern versions often integrate automatic feed systems and digital controls for precision.
Structure and Working Principle
A typical unit consists of a motor-driven rotary head with replaceable threading dies, a clamping mechanism to secure the rebar, and an adjustable guide for thread pitch control. The machine applies rotational force while advancing along the rebar to cut uniform threads. Advanced models feature gear reduction systems to handle high-torque demands and automatic reversal mechanisms to prevent thread damage. The threading process typically achieves ISO metric standards (e.g., M16, M20) or custom specifications as required by construction blueprints.
Key Features
1. Portability: Lightweight design (usually 5–15 kg) with ergonomic handles for onsite maneuverability. 2. Compatibility: Interchangeable die heads support multiple rebar diameters (commonly 12–40 mm). 3. Efficiency: Can thread 1–2 rebars per minute depending on operator skill and material hardness. High-end models may include LED work lights, dust extraction ports, and Bluetooth connectivity for parameter adjustments. The cutting system often uses tungsten carbide teeth for extended service life in high-volume applications.
Application Areas
Primary applications include creating threaded ends for: - Lapped splices in reinforced concrete columns - Mechanical coupler systems for seismic-resistant structures - Prefabricated rebar cage assemblies These machines are indispensable for contractors working on projects requiring Class A or B rebar connections as per ASTM A615/A706 standards. They are particularly valuable in modular construction where precise thread dimensions ensure structural integrity.
Maintenance and Precautions
Regular maintenance includes daily cleaning of metal shavings, weekly lubrication of gears and bearings, and monthly inspection of electrical components. Always use cutting fluid to prolong die life and ensure thread quality. Operators should wear ANSI-approved safety goggles and gloves. Avoid continuous operation beyond manufacturer-recommended duty cycles (typically 30 minutes of use followed by 10-minute cooling periods) to prevent motor burnout.
B2B Procurement Guide
When sourcing these machines wholesale, verify: 1. Compliance with local construction equipment regulations (e.g., CE, OSHA) 2. Availability of spare parts (dies, gears, motors) 3. After-sales service coverage Bulk buyers (10+ units) can expect 10–15% discount from manufacturers. Leading suppliers include brands like Eibenstock, VEVOR, and Jingjiang. For large infrastructure projects, consider machines with industrial-grade motors rated for 8+ hours daily operation.
Related Manufacturers
- 主营：钢筋笼、筋滚笼机
- 主营：履带式凿毛机、扫地机、电动台车、套丝机、模板台车、排水管台车、注油机、压线钳、灰浆泵、液压钳、除雪机、振动器、注浆机、防撞墙、切管机、灌缝机、翻爬机、沟槽机、刮平尺、捆扎机、泥浆泵、分离机、整平机、磨锈机、除雪车、混凝土凿毛机
- 主营：冷挤压套筒、直螺纹套筒、变径套筒、钢筋套筒、钢筋冷挤压机、钢筋滚丝机、钢筋滚丝轮、钢筋弯曲机、钢筋套丝机、钢筋锁母、钢筋连接套筒、钢筋切断机、钢筋锯床、钢筋弯箍机、钢筋弯弧机、镦粗套筒、焊接套筒、分体套筒、正反丝套筒
- 主营：直螺纹套筒、冷挤压套筒、变径套筒、钢筋套筒、钢筋滚丝机、钢筋冷挤压机、镦粗套筒、四级钢套筒
- 主营：预埋螺栓、圆钢车丝机、输送带剥层机、圆钢套丝机、输送带扒皮机、m8-m36钢管车丝机
- 主营：木工机械、带锯机、圆棒锄柄机、手持小型、整平机、推台锯、开槽机、轻便取样钻机、路面机械、园林机械、农业机械、挖掘机配件、环保设备、液压配件、生产、维修、三轮车、打磨机、压实机、扫地机
- 主营：倒角器、冲击夯、pvc管道、套丝机、试压泵、冲孔机、管道内、撵头机、攻丝机、凿岩机、胀管机、矿车轮、加长杆、拉毛机、液压钳、铝排管、灰斗车、卡管钳、拉轨车、凿毛机、卡压钳、乳胶漆、剥皮机、切排机、电缆剪
- 主营：电动无气喷涂机、腻子喷涂机、划线机、钢筋笼上丝拧紧扳手、防水喷涂机、真石漆喷涂机、隔膜式喷涂机、柱塞式喷涂机、电动试压泵、管道打压机、彩钢瓦打磨机、彩钢瓦除锈机、厚型防火喷涂机、普田喷涂机
- 主营：雾炮机、全封闭、洗车机、钢筋套丝机钢筋车丝机、混凝土、洗车台、蒸汽机、蒸养机、洗车槽、柴油t梁、t梁蒸汽、48kw燃油、80kg燃油、柴油80kg、喷淋围挡、洗车设备、蒸汽锅炉、电动桥梁、养护锅炉、洗轮洗车、桥梁蒸汽、自动感应、公路桥梁、节能桥梁、隧道蒸汽、围挡降尘
- 主营：钢丝绳芯输送带切割机、输送带切割机、气动钢轨钻、手持地脚螺栓套丝机、数控胀管机、钨棒打磨机、砂轮机、千斤顶、大头锄头、胶带切断机、电动角磨机、液压冲孔机、轨道平直尺、手动起线机、钨极磨削机、电动切割机、骨折固定夹板、下水管道疏通机、劈石器楔子电锤
- 主营：挖藕机、拆销机、升降机、钢筋切断机、钢筋弯曲机、钢筋弯弧机、搅拌机、抛粪车、弥雾机、抛光机、搅拌设备、压边成型机、育苗播种机、电动三轮车、钢管弯曲机、切圆压边机、电动四轮车、智能张拉机、穴盘育苗机、锯片磨齿机、镗焊一体机、油桶切割机、空心楼板机、智能压浆机、电动爬坡车
- 主营：钢筋弯曲中心、钢筋笼绕筋机、全自动钢筋弯箍机、钢筋剪切生产线、钢筋笼工作站、钢筋弯曲机、五机头弯箍机
- 主营：控制器、电视、水泵、套丝机、户外健身、摄像头、五金
- 主营：倒角器、扳手架、调压阀、钢筋扳手、打结刀、磨光机、电磁阀、测量仪、切管器、搅拌机、覆膜机、角磨机、电动机、打磨机、测亩仪、风速仪、割纱刀、热熔胶、减压阀、轴承座、铁皮剪、电链锯、干磨机、高速电机、电动球阀、铜管割刀