The Eastsign Rotary Heat Press SOT-64H is an entry-level thermal transfer equipment designed for polyester materials. It facilitates both flat transfer for clothing pieces and roll-to-roll or piece-to-piece thermal transfer. The machine is designed to be space-efficient, aiming to reduce power and labor expenses.
Function Description:
The SOT-64H operates by applying heat and pressure to transfer designs from printed transfer paper onto polyester substrates. Materials are fed from an upper position to ensure precise fabric feeding and minimize fault rates. The machine features a heating roller that maintains uniform heat distribution, and a significant portion of the roller surface is covered by a blanket to reduce heat loss and ensure optimal transfer results. Automatic material collection is supported, with adjustable speed for collecting transfer paper. The machine is equipped with a control panel for managing heating, temperature, and blanket rotation speed. Safety features include heat and power switches, and a warning system for high voltage, moving chains, and high temperatures.
Important Technical Specifications:
- Model: SOT-64H
- Cylinder: Oil-Heated, 50% Full
- Voltage: 1 or 3 Phase, 220V
- Heating Power: 9KW
- Heating Element: 9
- Diameter of Drum: 260mm or 10"
- Transfer Speed: Up to 0.5m/min or 5.4'/min
- Max Temperature: 240°C or 464°F
- Transfer Width: 1630mm or 64"
- Process Path: Feeding in through Top of The Drum
- Roll-to-Roll: Yes
- Piece-to-Piece: Yes
- Feeding Rollers: 3
- Collecting Rollers: 3
- Working Table: Yes
- Felt Release: Yes
- Auto Felt Alignment: Yes
- Tension Bar Subassembly: 3
- Machine Dimension: 2450mm x 720mm x 1400mm (96" x 28" x 55")
- Working Table Size: 1900mm x 670mm x 950mm (75" x 25" x 37")
- Packing Size: 2630mm x 950mm x 1640mm (104" x 37" x 65")
- Net Weight: 850kg or 1874lb
- Gross Weight: 1000kg or 2205lb
- Heating Oil Specification: Mineral base heat transfer oil (e.g., Total), Density: 0.83-0.87g/cm3 at 20°C, Viscosity: 21-31 mm2/s at 50°C, Flash Point (open to air): 173°C, Distillation range (2%v/v): 340°C, Maximum temperature at use: 320°C.
Usage Features:
- Precision and Uniformity: Most shafts are processed by a CNC cutting system, ensuring parallel alignment for ultra-long transfers without tracking issues. The stainless steel heating roller, also CNC formed, provides a smooth surface and uniform heating.
- Efficient Heat Transfer: Over 70% of the roller surface is covered by the blanket, minimizing heat loss and ensuring high-quality transfer results.
- Rigid Construction: The machine uses balanced shafts with an 87mm diameter, processed with CNC technique, to maintain rigidity and prevent deformation. This design helps prevent transfer paper from curling or developing ripple patterns on the media.
- Automated Operation: The SOT-64H supports automatic collection of fabric and transfer paper. The speed of collecting transfer paper can be adjusted via a dedicated controller.
- User-Friendly Controls: The control panel includes power on/off, heating on/off, temperature controller, and speed controller for blanket rotation. An emergency stop button is also present for immediate shutdown.
- Safety Measures: The machine incorporates several safety features, including a heat switch to stop heating immediately and a power switch. Operators are advised to keep the motor rotating until the temperature drops below 80°C after use to prevent blanket burning. Warning signs are clearly displayed for high voltage, moving chains, and high temperatures to prevent injuries.
- Pre-shrink Functionality: A pre-shrink procedure for the blanket is required after installation, involving specific temperature and time settings to ensure optimal performance and longevity of the blanket. For the SOT-64H with an auto-aligning system, specific relays need to be removed during this procedure and reinstalled after two weeks of operation.
- Horizontal Adjustment: A recommended method for leveling the machine involves using a transparent soft hosepipe filled with water to ensure all four corners are at the same height, crucial for stable operation.
Maintenance Features:
- Blanket Maintenance: To prevent burning, the blanket should continue rotating after heating is turned off until the temperature drops below 80°C.
- Heating Roller Care: The heating roller's surface can reach over 240°C. Operators must avoid touching it during operation or while it is hot to prevent burns or crushing injuries. Continuous monitoring is advised during heating and operation to prevent damage or fire from overheating.
- Electrical Safety: All electrical wires must be correctly connected, and the machine body must be grounded. Power should be shut off before examining or fixing any part of the equipment to prevent electric shock or mechanical injury.
- Environmental Requirements: The machine should be used in a dry, well-ventilated environment free from corrosive gases, and away from inflammable or explosive materials.
- Cleaning: The machine should not be washed with water to prevent short circuits, electric shocks, and corrosion. Mounting cards and transducers should be kept clean to avoid metallic conductive dust.
- Oil Drum Maintenance: The oil drum is filled with heat transfer oil, which typically lasts for 3 years. If necessary, oil can be added from the oil tank. Replacement of parts or heating oil should only be done after consulting Eastsign engineers and using approved parts.
- Troubleshooting Guide: The manual provides a troubleshooting section for common issues such as temperature not rising, temperature being out of control, blanket/heating roller not revolving, unstable temperature, and main switch trips, along with suggested causes and solutions (e.g., replacing solid-state relays, electric tubes, bearings, or adjusting blanket tension).
- Restart Procedure: When restarting the machine after a long period of disuse, especially in winter, it is recommended to preheat the blanket at 200°C for 3 hours. Specific relays (3rd and 4th) need to be in place for this.