Operating Instructions for Steel Rebar Bending Tester

Operating Instructions for Steel Rebar Bending Tester

This machine is equipped with two support rollers with adjustable center‑to‑center distance. Different sizes of bending mandrels can be equipped. The diameter of bending mandrel shall comply with relevant standards and be determined according to the nominal diameter of steel rebar. It features reliable performance and easy operation. ZP MACHINE provides the operating instructions for steel rebar bending tester as follows:

1. Pre‑operation overall inspection: Verify the mechanical condition of the equipment. Keep the workbench and tester base at the same horizontal level, and prepare complete accessories including mandrels and stopper blocks.

2. Tooling assembly: Install mandrel, forming shaft, stopper shaft or adjustable stopper frame according to the nominal diameter of steel rebar and technical requirements of equipment. The mandrel diameter shall be 2.5 times the nominal diameter of steel rebar.

3. Component inspection and no‑load test: Check that mandrels and stoppers are free of damage or cracks, and confirm the safety guard is tightly fastened. Perform no‑load running test. Start formal test only if no abnormality occurs.

4. Specimen clamping: Insert the end to‑be‑bent of steel rebar into the clearance of fixed tooling. Press the other end tightly against the fixed component of main unit. Ensure the main unit is locked and steel rebar is well positioned before startup.

5. Prohibited actions during operation: While the machine is running, do not replace mandrels, adjust bending angles, shift speed gears, add lubricant or clear debris.

6. Specimen parameter control: Do not process steel rebar specimens exceeding the rated specifications of equipment, including rebar diameter, processing quantity and operating speed.

7. Tooling adaptation for special rebar: For bending test of high‑hardness rebar and low‑alloy rebar, reduce the maximum processing diameter per nameplate requirement and replace with matched mandrels.

8. Site safety requirements: No personnel shall stand within the bending operating radius or on the unconstrained side of main unit. Stack finished specimens neatly, and keep the hooks of finished products facing downwards.

9. Reversing operation: Switch rotation direction only after the machine comes to a complete stop.

10. Post‑test maintenance: Clean up the working site after test completion, carry out equipment maintenance, cut off power supply and lock the electrical cabinet.

钢筋弯曲试验机操作说明

该设备配置两支承辊，支承辊中心间距可调节，支持选配多种规格弯心；弯心直径需遵循相关行业标准，并根据钢筋公称直径选定。设备运行稳定可靠，操作简便。ZP MACHINE 整理钢筋弯曲试验机规范操作说明如下：

1. 开机前整机核查：核验设备机械工况，保证工作台与试验机底座处于同一水平面，配齐芯轴、工装挡块等配套工具。

2. 工装组件装配：依据钢筋公称直径以及设备技术要求完成芯轴、成型轴、挡铁轴或可调挡架的安装配置；芯轴直径应达到钢筋公称直径的 2.5 倍。

3. 零部件与空载检测：检查芯轴、挡块无破损、裂纹缺陷，安全防护罩装配紧固到位；完成空载试运行，确认设备无异常后方可投入试验作业。

4. 试样装夹作业：将钢筋待弯曲端置入固定工装间隙，钢筋另一端紧贴主机固定构件并压紧；确认主机锁止到位，钢筋可靠限位后，方可启动设备。

5. 运行过程禁止操作：设备运行期间，严禁更换芯轴、调整弯曲角度、切换调速档位，禁止开展润滑加注与杂物清理作业。

6. 试样规格管控：不得加工超出设备额定参数的钢筋试样（包含钢筋直径、加工数量、运行转速）。

7. 特种钢筋工装适配：对高硬度钢筋、低合金钢筋开展弯曲试验时，需参照设备铭牌限值下调最大加工直径，同步更换匹配规格的芯轴。

8. 现场安全防护要求：设备弯曲作业半径范围内以及主机无固定限位侧严禁人员站立；加工完成的试样成品分类规整堆放，成品弯钩不可朝上放置。

9. 换向操作要求：执行转向切换操作，必须等待设备完全停机静止后进行。

10. 作业结束收尾维护：试验工作完成后，清理作业现场，开展设备保养维护，切断电源并锁闭电气箱。