**Trademark:** RUIHUI **Transport Package:** Wooden Box or Vacuum Packing **Specification:** 3800*3300*2750mm **Origin:** China, Dongguan **Trademark:** RUIHUI **Transport Package:** Wooden Box or Vacuum Packing **Specification:** 3800*3300*2750mm **Origin:** China, Dongguan --- **Stamping Automatic Unwinding Equipment, Material Rack, Feeder** [http://www.ruihui.net](http://www.ruihui.net) Heavy-duty material racks are widely used in stamping and shearing lines, positioned at the beginning of the production line. They are designed to discharge and unwind rolls of sheet materials. For standard applications, regular heavy-duty material racks are sufficient, while for heavier materials (over 2 tons), hydraulic heavy-duty material racks are required. The hydraulic heavy-duty material frame is a vertical cantilever type unwinding device. It uses an AC variable frequency motor driven by a cycloidal pin reducer through belt drive. The feeding process involves placing the material roll on a loading trolley and sliding it along the base rail using a handle console car. Proximity switches control the automatic alignment of the material roll with the expansion and contraction reel, ensuring smooth feeding. The hydraulic heavy-duty material frame features a quadrangular pyramid structure with a 14° taper slope. The tail of the reel is equipped with a rotary cylinder and seal, connected to the hydraulic station via pressure-resistant oil pipes. The reducer is a two-stage cycloidal pin type, made from a welded box. The press arm is fitted with polyurethane and controlled by a cylinder. The up-and-down reel uses four A-type gears for positioning. ### Key Components: 1. **Heavy-Duty Frame Body** Constructed from profiled steel, A3 steel plate, and #45 steel forged bearing blocks. The welded surfaces are finely ground, and after welding, the bearing holes are processed following annealing and stress treatment. The backplate is machined using a CNC center to ensure tight assembly. 2. **Shrinking and Reeling Drum Assembly** Includes a main shaft, backrest wheel, quadrangular pyramid shaft, fan-shaped pallets, tie rods, expansion/contraction cylinders, and a rotary joint. The main shaft is made of 40Gr round steel with a 85mm diameter through-hole. After ultrasonic testing and quenching/tempering, the surface is nitrided and heat-treated, with a working diameter of 125mm. The drawbar and support plates are made of 42CrMo alloy steel forgings, heat-treated after finishing. 3. **Motor and Reducer Assembly** The main motor is directly connected to the cycloidal pin motor, driven by a belt. The transmission system includes a protective cover, and speed is regulated by a Delta frequency converter. 4. **Hydraulic System Assembly** Composed of a hydraulic station, pressure maintenance valve, pressure oil pipes, rotary joint, and expansion/contraction cylinder. All hydraulic components are from Taiwan brands, and the expansion/contraction cylinder moves the wedge-shaped slider to adjust the reeling function. --- **Frequently Asked Questions (FAQ):** **Q1: What kinds of machines do you have?** Our main products include Nc Servo Roll Feeders, Uncoilers, Straighteners, 3-in-1 Straightener Feeders, Transfer Systems, Press Feeding Lines, and more. **Q2: Is your equipment standard or customized?** We offer both standard and customized solutions. We support OEM and ODM projects based on customer requirements. **Q3: What certifications do your machines have?** All our products come with CE certification. **Q4: How does your quality system work?** "Quality is our culture." While we may not be the cheapest, we provide high-quality products that help you stand out in the market. **Q5: What is the warranty period for the machine?** We offer a one-year free warranty. If operated properly, the machine can last over 10 years. **Q6: Is it possible to become a foreign agent or distributor?** If you have strong after-sales service capabilities, we welcome you to become our agent or distributor worldwide. **Q7: What are your payment terms?** We accept T/T, D/P, L/C, Western Union, and other flexible options. **Q8: What is your delivery time?** "Time is gold." We have a professional team and production line to ensure fast and high-quality delivery. --- **Service Commitments:** 1. **Pre-Sales Service:** Our professional designers work closely with customers to meet their specific needs. 2. **After-Sales Service:** We provide 24/7 support with an efficient team. 3. **Full-Service Support:** We actively assist customers in solving any issues during equipment use. 4. **Overseas Engineering Support:** Our engineers can travel abroad to provide on-site service. For more details, visit [http://www.ruihui.net](http://www.ruihui.net).

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