Tóm tắt
A rotary arm pallet wrapping machine turns the film around the load instead of turning the load. That keeps light, tall or loose loads, such as stacked bags, steady during the wrap, and lets the wrapper sit over a conveyor in a packing line. Our automatic rotary arm wrapper runs the arm at 10–14 r/min, wraps loads up to 1,200 × 1,200 × 1,600 mm and handles about 20–40 pallets per hour.
The white gantry frame carries the rotating arm over a chain conveyor. A pallet of white bags stops under the frame and the overhead top press comes down on the top layer. The arm then circles the load, and an orange clamp arm at the base holds and cuts the film tail. The white control cabinet beside the line carries a red, yellow and green signal tower.
Mục lục
- Loads that suit a rotary arm
- Setting carriage speed for the film overlap
- Cycle time and pallets per hour
- Top press for bags and loose stacks
- Automatic film clamp, cut and wipe
- Dữ liệu chính
- Danh sách kiểm tra lựa chọn
- An toàn: Tiêu chuẩn EN 415-6 và ISO 12100
- Câu hỏi thường gặp về kỹ thuật
- Bước tiếp theo
- Đọc liên quan
- nguồn
Loads that suit a rotary arm
| Phụ tải | Why the arm helps |
|---|---|
| Stacked bags or sacks | the stack is not spun, so bags do not slide out |
| Những chồng cao và hẹp | no centrifugal force on the top layers |
| Thùng carton nhẹ | the load stays square while the film goes on |
| Pallets on a conveyor line | the arm works above the conveyor, no turntable in the line |
| Các kiện hàng nặng | the load weight does not pass through a turning table |
Setting carriage speed for the film overlap
The film carriage rises while the arm turns. Each arm turn lays one band of film, and the carriage travel per turn sets how much the bands overlap:
Pitch per turn = carriage speed ÷ arm speed. Overlap = 1 − pitch ÷ film width.
With 500 mm film and the arm at 12 r/min:
| Tốc độ xe ngựa | Pitch per turn | chồng chéo |
|---|---|---|
| 4 m / phút | 4,000 ÷ 12 = 333 mm | 1 − 333 ÷ 500 = 33% |
| 3 m / phút | 3,000 ÷ 12 = 250 mm | 50% |
Kết quả. For 50% overlap at 12 r/min, set the carriage to 3 m/min. The carriage runs at 2–6 m/min and the arm at 10–14 r/min, so both can be tuned on the panel to the load.
Cycle time and pallets per hour
Worked example: a 1,200 × 1,200 × 1,600 mm load, carriage at 3 m/min, arm at 12 r/min.
| Bước | Tính toán | Kết quả |
|---|---|---|
| One pass up | 1.6 ÷ 3 | 0.53 min, about 32 s |
| Lên và xuống | × 2 32 | 64 s |
| Arm turns in that time | 64 × 12 ÷ 60 | 12.8 biến |
| Reinforcing turns, 2 bottom + 2 top | 4 × 60 ÷ 12 | 4 turns, 20 s |
| Thời gian gói | 64 + 20 | 84 s |
| Tổng số lượt | 12.8 + 4 | 16.8 biến |
| Chu vi tải | × 4 1.2 | 4.8 m |
| Phim trên tải | × 16.8 4.8 | 81 m |
| Film from the roll at 200% pre-stretch | 81 ÷ 3 | khoảng 27 m |
The packing speed of about 20–40 pallets per hour means 3,600 ÷ 20 = 180 s down to 3,600 ÷ 40 = 90 s per pallet, including conveying, the top press and the film cut. The 84 s wrap above leaves about 96 s of a 180 s slot at 20 pallets per hour. A one-pass-up wrap at a faster carriage speed reaches the high end; a full up-and-down wrap on tall loads sits at the low end.
Top press for bags and loose stacks
The arm does not spin the load, but the film still pulls on the top layers. On stacked bags the top press holds the top layer down for the whole wrap and lifts once the film is cut. We decide on it from the smallest and lightest load on the line; stroke, actuator and plate size are confirmed at quote.
Automatic film clamp, cut and wipe
In unmanned mode the wrapper feeds the film, wraps, cuts, smooths the film tail and conveys the pallet out with no operator. The optional pneumatic system does this in three steps:
- Kẹp. Scissors-like gripper bars hold the film tail for the next start.
- Cắt tỉa. Dây gia nhiệt tức thời sẽ cắt màng phim.
- Lau. A soft brush presses the tail flat onto the load.
The cylinders run on air at 6–8 kgf/cm² (about 0.6–0.8 MPa). Without this option, film setting, cutting and smoothing are done by hand.
Dữ liệu chính
| Mục | Giá trị |
|---|---|
| tốc độ cánh tay | 10–14 r/min, by inverter |
| tốc độ giá đỡ phim | 2–6 m / phút |
| Tốc độ đóng gói | about 20–40 pallets per hour |
| Kích thước đóng gói tối đa | 1,200 × 1,200 × 1,600 mm |
| Chiều cao pallet | 800 tầm 1,600 mm |
| Căng trước | powered, up to 200% |
| Phim ảnh | 500 mm wide, 76 mm core |
| Arm motor / carriage motor | about 0.75 kW / about 0.37 kW |
| trọng lượng máy | khoảng 600 kg |
| Power | Điện xoay chiều 380 V, 50 Hz |
| Conveyors (option) | chain conveyor as shown, or driven roller conveyor with roller size and spacing to the pallet; about 12 m/min; photo-eye pallet sensing |
| Báo chí hàng đầu | option, stroke and actuator confirmed at quote |
Danh sách kiểm tra lựa chọn
- Load size, height and weight.
- Load type: bags, cartons, loose or stable.
- Pallet mỗi giờ.
- Manual or automatic film cut.
- Conveyor type, speed and direction.
- Air supply and power at site.
An toàn: Tiêu chuẩn EN 415-6 và ISO 12100
Pallet wrapping machines are covered by EN 415-6, with the risk assessment to ISO 12100:2010. The turning arm and the film carriage are the main hazards. The arm zone is closed by fencing or light curtains, with interlocked access, and the signal tower shows the running state. The machine must stand on flat, hard ground. Guarding and CE documents are agreed per project.
Câu hỏi thường gặp về kỹ thuật
Q: Why choose a rotary arm instead of a turntable? A: The load does not turn, so light or loose loads stay square and the wrapper fits over a conveyor.
Q: How do I set the film overlap? A: Divide the carriage speed by the arm speed to get the pitch per turn, then compare it with the film width, as in the table above.
Q: How many pallets per hour? A: About 20–40 pallets per hour, depending on the wrap pattern and load height.
Q: Is the film cut automatic? A: It is an option: pneumatic clamp, heating wire cut and brush wipe.
Q: What is the largest load? A: 1,200 × 1,200 × 1,600 mm on this model. Larger sizes are confirmed at quote.
Bước tiếp theo
- Send your load size, weight, type and pallets per hour Gửi đến info@fhopepack.com.
- Chúng tôi thiết lập the arm speed, carriage speed and conveyor layout.
- Chúng tôi trả lời trong vòng 24 giờ Kèm theo đề xuất và báo giá.
Đọc liên quan
- Rotary arm pallet wrapping machine (automatic line)
- Máy bọc pallet trực tuyến với máy ép hàng đầu
- Máy quấn màng pallet tay quay R100 tích hợp máy cắt màng.
- Máy đóng gói pallet chiều cao với thiết bị ép hàng đầu
- B200 automatic pallet wrapping machine (product)
nguồn
- FHOPE rotating arm automatic pallet wrapper quotation (2017) and R200 quotation (2022)
- EN 415-6; ISO 12100:2010
- The rotary arm wrapper shown above
Lần cuối cập nhật: 19/10/2026
