Περιστρεφόμενος βραχίονας περιτύλιξης παλετών: Τεχνολογία και βέλτιστες πρακτικές

Περίληψη

A rotary arm pallet wrapper keeps the pallet still and turns the film around it on an arm. That suits loads that are unstable, very heavy or too light to spin on a turntable. Our R100 rotary arm wrapper turns at 15–18 r/min, takes loads up to 1,200 × 1,200 × 2,000 mm and is rated at 35 pallets per hour.

The load here is a tall pallet of cartons standing on the floor under the orange arm. The pallet does not move; the mast and film carriage travel around it, and the finished load is wrapped from the pallet base to the top.

Πίνακας περιεχομένων

How a rotary arm wrapper works

The machine has a main frame, a rotating arm, a film carriage on the arm’s mast, and a control panel. The arm turns around the pallet, driven through an inverter, with a soft start and stop. While it turns, the film carriage travels up and down the mast. A photo eye finds the top of the load, and the PLC runs the bottom, middle and top winds, each set from 0 to 99.

Rotary arm or turntable

Παράγοντας Περιστροφική πλάκα Περιστροφικός βραχίονας
Μετακίνηση φορτίου spins with the table παραμένει ακίνητο
Unstable or tall stacks can lean or shift as the table turns remain stationary
Πολύ ελαφριά φορτία can slide on the table remain stationary
Πολύ βαριά φορτία table and bearing sized to the load weight goes to the floor or conveyor
Inline conveyor conveyor turntable needed standard conveyor runs under the arm
Πάτωμα turntable plus mast arm sweep circle

Κανόνας του αντίχειρα. If the load cannot be spun safely, or the line already has a conveyor that should stay straight, choose the rotary arm.

Specifications (R100)

Είδος Εικόνα
Παραγωγή 35 παλέτες την ώρα
Ταχύτητα βραχίονα 15–18 r/min, variable by inverter
Μέγιστο μέγεθος φορτίου 1,200 1,200 × × 2,000 mm
Ταινία 500 mm wide, 76 mm core
Επίπεδα 0–99 winds bottom, middle and top
Ταχύτητα μεταφοράς φιλμ 2.9 m / λεπτό
Αισθητήρας ύψους φορτίου φωτογραφικό μάτι
Έλεγχος PLC
Τάση 380 V, 3 phase, 50/60 Hz
Αέρας 6–8 kgf/cm², clean and dry
Βάρος μηχανής περίπου 500 kg

Worked example: tall load cycle

Take a load of 1,200 × 1,200 × 2,000 mm, the R100 maximum, with 3 bottom and 3 top winds at 15 r/min.

Βήμα Υπολογισμός Αποτέλεσμα
Carriage up 2.0 m ÷ 2.9 m/min about 0.69 min, 41 s
Carriage down ίδιο περίπου 41 δευτ
Top and bottom winds 6 ÷ 15 r/min 0.4 min, 24 s
Χρόνος περιτύλιξης 41 + 41 + 24 περίπου 106 δευτ
Arm turns while travelling 82 s × 15 ÷ 60 για 20.5
Φιλμ στο φορτίο (20.5 + 6) × 4.8 m perimeter about 127 m applied
Time per pallet at 35 per hour 3,600 ÷ 35 περίπου 103 δευτ

Αποτέλεσμα. A full-height load needs about 106 s of wrapping alone, more than the 103 s per pallet behind the 35-per-hour rating. The rating fits lower loads; for tall loads, plan on fewer pallets per hour or fewer layers. The 127 m is film applied to the load; film taken off the roll is shorter by the pre-stretch ratio set on the carriage, confirmed at quote.

Βέλτιστες πρακτικές

  • Guard the arm sweep. The sweep circle is closed by fixed fencing with an interlocked gate or by light curtains; a painted floor line only marks it and is not a safeguard.
  • Centre the pallet. An off-centre pallet changes the film tension as the arm passes the near and far corners.
  • Set layers by load, not by habit. Each extra top or bottom wind costs 4 s at 15 r/min.
  • Use the photo eye. Let it set the top position rather than a fixed height.
  • Check the air. The pneumatic parts need clean, dry air at 6–8 kgf/cm².

Λίστα ελέγχου επιλογής

  1. Load size, height and weight.
  2. Is the load stable enough to spin?
  3. Παλέτες ανά ώρα.
  4. Forklift loading or conveyor in line.
  5. Floor space for the arm sweep.

Ασφάλεια: EN 415-6 και ISO 12100

Pallet wrapping machines are covered by EN 415-6, with the risk assessment to ISO 12100:2010. On a rotary arm machine the moving arm is the main hazard. The sweep area is closed by perimeter fencing with interlocked access doors, or by light curtains with muting where pallets enter and leave on a conveyor. The arm starts only when the area is closed, and an emergency stop is within reach. Guarding and CE documents are agreed per project.

Συχνές ερωτήσεις μηχανικής

Q: Why choose a rotary arm over a turntable? A: The load stays still, so tall, light or unstable loads are wrapped without moving them.

Q: How fast does the arm turn? A: 15–18 r/min on the R100, set by inverter.

Q: What is the largest load? A: 1,200 × 1,200 × 2,000 mm on the R100; larger sizes are confirmed at quote.

Q: Does it need compressed air? A: Yes, 6–8 kgf/cm², clean and dry.

Επόμενο βήμα

  1. Send your load size, weight and rate στο info@fhopepack.com.
  2. Ελέγχουμε arm or turntable for your load.
  3. Απαντάμε εντός 24 ωρών με πρόταση και προσφορά.

Πηγές

  • FHOPE quotation: R100 rotary arm pallet wrapper
  • EN 415-6; ISO 12100:2010
  • Our rotary arm pallet wrapper shown above

Τελευταία αξιολόγηση: 19-10-2026