Stainless Steel Mirror Polishing Machine

Dongguan Xindingsheng Intelligent Grinding Technology Co., Ltd. is one of the leading manufacturers and suppliers of stainless steel mirror polishing machine in China, featured by quality products and good price. Please rest assured to wholesale bulk customized stainless steel mirror polishing machine from our factory. For quotation, contact us now.

This equipment is a heavy-duty centrifugal finishing machine with large loading capacity, tailor-made for the batch finishing processing of large-sized workpieces. Equipped with an 18.5kW high-power motor, it has strong driving force with a single-batch loading capacity of 4×50L, a 67% increase in processing volume compared with the 790A model, perfectly adapting to the needs of uninterrupted mass production lines. The speed can be adjusted freely within the range of 0-200RPM, with excellent adaptability to different processes: low-speed operation can achieve high-precision mirror polishing, while high-speed operation is suitable for rough grinding and deburring operations, realizing multi-process integration on a single machine.

The equipment is configured with four sets of heavy-duty pentagonal drums (16 in total). The drum shell is made of 10mm thick steel plate with excellent impact and deformation resistance; the drum inner liner is made of ultra-high wear-resistant polyurethane material with 80% higher wear resistance than conventional models, suitable for high-intensity finishing processing of high-hardness and large-sized workpieces. The drum transmission adopts a combined structure of cast steel gears and MC nylon gears, with super-strong load-bearing capacity and stable operation, supporting 24/7 uninterrupted operation of the equipment.

The drum set features a fully enclosed structure with a high-pressure sealing design, which can withstand the huge centrifugal pressure generated during high-speed operation and effectively prevent water seepage and liquid leakage. The equipment base has a built-in large-capacity liquid collection tank that can collect a large amount of grinding fluid for centralized discharge and treatment, highly suitable for large-scale industrial mass production workshops. In addition, the equipment is equipped with a high-power independent heat dissipation system to ensure the long-term stable operation of the whole machine without overheating failures.

(1) Overall Structure

Adopting a large-capacity heavy-duty structural design, it is composed of a thick steel plate upper cover, an ultra-heavy welded base, a large-capacity drum turntable assembly, an industrial-grade electrical control cabinet and a large-volume material receiving tank. All core components have been reinforced with outstanding load-bearing capacity, adapting to long-term heavy-load working conditions.

• Upper Cover: Welded with 10mm thick steel plate with a professional wear-resistant spray coating on the surface, greatly improving durability; the front protective sliding door adopts a heavy-duty hinge design with built-in double travel switches to achieve double safety protection and ensure operational safety; the ventilation shutters at both ends are large detachable types, facilitating internal heat dissipation of the equipment and daily cleaning and maintenance.
• Base: Welded with heavy channel steel, the bottom is equipped with heavy-duty shockproof cast iron foot pads that can effectively absorb the vibration generated during equipment operation and avoid damage to the factory floor; the motor fixing plate adopts a dual-screw hydraulic adjustment structure for easy and labor-saving adjustment of the belt tension of the heavy-duty motor; a 100L large-capacity liquid collection tank with a quick-release drainage port is installed inside the base, realizing convenient collection and rapid discharge of grinding fluid.
• Drum Turntable Assembly: The large turntable is forged from thick-walled cast steel, with a diameter 20% larger than that of the 790A model and double the load-bearing capacity. Each drum is designed with a large capacity of 50L, the snap-on cover adopts a heavy-duty locking design with a high-pressure rubber sealing ring for excellent sealing performance. The drum tilting mechanism is driven by a high-power worm gear reducer and double chains with sufficient tilting power for fast and labor-saving discharging. The inner drum adopts a pressure plate-type thickened structure with strong wear and impact resistance.
• Electrical Control Cabinet: Adopting an industrial vertical design with an IP54 dust and water resistance rating, it can adapt to harsh industrial workshop environments; a high-power industrial cooling fan is built-in to ensure the stable and normal operation of electrical components such as frequency converters and contactors during long-term continuous work.

(2) Working Principle

It adopts the advanced finishing processing principle of "high-power high-speed revolution + high-intensity heavy-load rotation". An 18.5kW high-power motor drives the large cast steel turntable to achieve high-speed revolution through a heavy-duty pulley, and at the same time, drives four sets of large-capacity drums to rotate in the reverse direction with high intensity through the combined transmission of cast steel gears and MC nylon gears, thus generating strong dual centrifugal force.

In the drum, a large number of large-sized workpieces and industrial abrasives form an ultra-high-density finishing processing area under the action of dual centrifugal force. The abrasives conduct all-round and high-intensity friction and finishing processing on the surface of the workpieces, and can quickly complete a series of processes such as rough grinding/deburring, medium grinding/chamfering and fine polishing. The finishing processing efficiency is 70% higher than that of ordinary models, and it can operate 24/7, fully meeting the high-efficiency production needs of industrial mass production.

The equipment is equipped with an industrial-grade high-power frequency converter that supports a wide range of stepless speed regulation with a speed control accuracy of ±1RPM, realizing precise speed adjustment according to the finishing processing requirements of workpieces of different materials. The electrical control panel is equipped with a digital speed display screen, jog switch, emergency stop button, start/stop switch, and an additional running time timer for convenient and precise control of the finishing processing time.

It is configured with a variety of industrial-grade safety protection functions: in addition to the two-way travel switch interlock protection, motor overload protection, overheat protection and current overload protection are added. When the equipment is overloaded, overheated or has abnormal current, it will automatically shut down and send out an alarm to avoid equipment damage. At the same time, the drum tilting mechanism is interlocked with the main machine, and the tilting mechanism cannot be started when the main machine is running, fundamentally eliminating misoperation and ensuring the safety of operators and equipment.

(1) Installation Requirements
1.The equipment shall be placed on a reinforced concrete floor with a bearing capacity of ≥6000kg/㎡, heavy-duty shockproof cast iron foot pads are installed at the bottom, and a level is used to adjust the equipment to a completely horizontal state to ensure no shaking during operation.
2.Test the insulation resistance of the motor winding with a 500V megohmmeter, with the resistance value not less than 0.6MΩ to ensure the motor can adapt to long-term heavy-load operation.
3.Connect to a 380V three-phase industrial power supply with a stable voltage of 380±10V, an independent high-power power switch must be configured, the ground wire must be connected reliably with a grounding resistance ≤4Ω to ensure electrical safety.
4.After the installation is completed, a 10-minute no-load test run must be carried out to check whether all parts of the equipment operate normally without abnormal noise and vibration. The equipment can be put into formal use only after confirming everything is normal.

(2) Post-Installation Adjustment
1.Every 200 hours of equipment operation, check the wear degree and tension of the motor belt in a timely manner, and adjust the belt tension through the dual-screw hydraulic adjustment structure. The optimal state is that the belt has a slack of 2-3cm when pressed by hand; if the belt is severely worn, it must be replaced with an industrial-grade wear-resistant special belt in a timely manner.
2.Regularly check the tension of the double chains of the drum tilting mechanism, and adjust the tension by moving the position of the reducer bracket. Over-tight chains are prone to wear, while over-loose chains are prone to slipping, both of which will affect the normal operation of the equipment.
3.If the drum has liquid leakage, adjust the heavy-duty positioning screws on both sides of the drum to compress the high-pressure sealing ring for a good sealing effect; if the sealing ring is damaged, it must be replaced in a timely manner.

(1) Operation Steps
1.Turn on the power supply, press the jog switch to adjust the drum to a position where the front upper opening tilts 15° forward, and open the heavy-duty locking drum cover with a special wrench.
2.The workpieces must be pre-treated (degreased and derusted) in advance. Load workpieces and abrasives into the drum at a ratio of 1:2 with the total loading volume accounting for 70%-75% of the drum capacity; add industrial-grade special abrasives and an appropriate amount of clean water with the water level 5-8cm higher than the surface of the workpieces and abrasives, then fasten the drum cover and lock all locks reliably.
3.Adjust the equipment to the target speed and start operation. In the 24/7 continuous operation mode, the equipment must be shut down for 5 minutes of cooling every 60 minutes of operation to prevent overheating of the equipment and inner drum from affecting the service life.
4.After the finishing processing is completed, stop the equipment and adjust the drum tilting mechanism to the designated discharging position through the jog function, pour the workpieces and abrasives into the large-capacity material receiving tank. The preliminary separation of workpieces and abrasives can be realized through the graded filter screen of the material receiving tank.

(2) Daily Maintenance
1.Every 300 hours of equipment operation, add industrial-grade high-temperature wear-resistant calcium-based grease to all bearing parts of the equipment, and clean the bearing parts regularly to prevent abrasives and dust from entering and causing wear.
2.After the end of daily operation, thoroughly clean the inside of the drum, the material receiving tank and the liquid collection tank, drain all the grinding fluid and wipe the inner drum dry to avoid corrosion caused by residual liquid. Regularly check the heavy-duty locks and sealing rings, and replace worn or damaged parts in a timely manner.
3.Open the electrical control cabinet once a week, clean the internal dust with a high-pressure air gun, and check whether the cooling fan is running normally and whether the wiring terminals are loose.
4.For equipment operating 24/7, special personnel must be arranged to conduct patrol inspections every 2 hours to check the equipment operation status, motor temperature and hydraulic system working status, and stop the machine immediately for processing if any abnormality is found.
5.If abnormal noise is found during equipment operation, stop the machine immediately for inspection, focusing on checking transmission components such as bearings, gears and chains, and replace damaged parts in a timely manner to avoid further expansion of mechanical damage and impact on the overall performance of the equipment.

This equipment is specially developed for the rough grinding/deburring, medium grinding/chamfering and precision mirror polishing of large batches of large-sized, high-hardness workpieces in industries such as automobile manufacturing, engineering machinery, heavy hardware processing and mold manufacturing. It is an ideal finishing processing equipment for 24/7 continuous operation in large-scale industrial mass production workshops.

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