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With advanced forming technology, precision control systems, and automatic operation, our paper cup machines can produce various sizes of single PE coated and double PE coated paper cups for coffee cups, beverage cups, takeaway cups, and food packaging applications.
LM-K4-65 Rectangular Paper Barrel Machine
LM-K4-65 rectangular paper barrel machine: max width 290 mm, height 40-150 mm, 55-65 pcs/min, 36 kW, 10,000 kg.
Quick Answer: What Is The LM-K4-65?
The LM-K4-65 is a rectangular paper barrel machine that forms large rectangular paper barrels and food tubs at 55-65 pcs/min. It is powered by 36 kW, needs 0.8 m³/min of compressed air, and ships in 30-35 working days. It is built for fried chicken, popcorn and bulk takeaway food packers.
The LM-K4-65 is our largest rectangular forming machine. It produces square paper barrels up to 290 mm across with heights from 40 mm to 150 mm, the format used for fried chicken buckets, family packs and large meal boxes.
At 10,000 kg and 36 kW, it is the heaviest machine of the high speed family, built for the forming force that a 290 mm square barrel needs.
What Is A Rectangular Paper Barrel Machine?
A rectangular paper barrel machine is an automatic forming machine that turns pre-printed, die-cut paper blanks into finished paper barrels and tubs in one continuous cycle: the blank is fed, the body is formed and side-sealed, a bottom disc is inserted and heat-sealed, the rim is curled, and finished pieces are counted and stacked.
Unlike semi-automatic equipment, which moves cups between stations by hand, a fully automatic machine such as the LM-K4-65 keeps every station in mechanical phase. That is why it can hold 55-65 pcs/min with a single operator, and why output stays consistent across long shifts for fried chicken, popcorn and bulk takeaway food packers.
Feature:
- Up to 290 mm square barrel – the biggest format in our range
- Height 40-150 mm – shallow trays to deep buckets
- 55-65 pcs/min – practical speed for a large square format
- Double cam shaft platform – even pressure on long walls
- 10,000 kg frame – maximum rigidity for large blanks
- Family pack ready – matches fast food bucket sizes
Application:
The LM-K4-65 is used by converters supplying quick service restaurants:
- Fried chicken buckets and family buckets
- Large sharing meal boxes
- Family size popcorn and snack barrels
- Large square food containers for catering
Factories usually run the LM-K4-65 next to our automatic packing machine so large barrels are counted and film packed without manual handling.
Machine Parameters:
| Item | Specification |
| Model | LM-K4-65 |
| Barrel Size | Max 290 mm, height 40-150 mm |
| Production Speed | 55-65 pcs/min |
| Power Supply | 380 V / 36 kW, 50 Hz |
| Air Consumption | 0.8 m³/min |
| Net Weight | 10,000 kg |
| Dimension | L3800 × W1950 × H1980 mm |
How Does The LM-K4-65 Work?
The LM-K4-65 runs a continuous, fully automatic cycle. One operator loads material and monitors the panel; the stations below run in sequence:
- Blank feeding: Pre-printed, die-cut fan-shaped blanks are loaded into the magazine and fed one by one.
- Body forming: The blank wraps around the mandrel and the side seam is sealed with heat.
- Bottom insertion: A bottom disc is punched from the paper roll and placed into the body.
- Bottom sealing: The bottom heater bonds and knurls the base so the container is leak-proof.
- Rim curling: The top rim is rolled outward for a smooth drinking edge and a tight lid fit.
- Counting and stacking: Finished pieces are counted automatically and stacked into sleeves.
Main Machine Features:
- 290 mm Square Format: covers the largest bucket sizes used by quick service restaurant chains.
- 10,000 kg Frame: large rectangular blanks need a very rigid body to keep wall seams tight.
- 36 kW Drive: power headroom for continuous heavy forming.
- 40-150 mm Height Range: trays and deep buckets on the same machine with a tooling change.
- Double Cam Shaft Platform: shared with our bowl machines for simpler maintenance planning.
What Can The LM-K4-65 Produce?
| Product | Typical Size | End Use |
| Fried chicken bucket | up to 290 mm | Quick service restaurants |
| Family snack barrel | 200-290 mm | Popcorn chains, cinemas |
| Large meal box | 200-260 mm, 40-90 mm high | Delivery platforms |
| Catering tray | 250-290 mm, shallow | Events, canteens |
Output Planning: What Can You Expect Per Shift?
Use these numbers to size the machine against your order book:
| Production Window | Running Time | Output At Rated Speed |
| Per hour | 60 min | 3,900 tubs |
| Per 10-hour shift | 10 h | 39,000 tubs |
| Per day (2 shifts) | 20 h | 78,000 tubs |
| Per month (26 days, 2 shifts) | 520 h | 2,028,000 tubs |
Figures are calculated at the rated top speed of 55-65 pcs/min and assume steady material supply and normal changeover time. Running smaller sizes or heavier board will sit at the lower end of the range.
Is The LM-K4-65 The Right Machine For Your Factory?
Choose the LM-K4-65 if:
- You need 55-65 pcs/min of steady output and want one machine to cover rectangular barrels up to 290 mm across and 40-150 mm in height.
- You supply fried chicken, popcorn and bulk takeaway food packers and need consistent, leak-proof quality on every batch.
- You want one high speed line instead of two medium speed machines, so floor space and labour stay at one machine.
- You plan to run two shifts and need the machine to hold tolerance over years, not weeks.
Consider a different model if:
- Your orders are still small and seasonal: a lower-output model keeps your capital cost down.
- You only need one fixed size today: a dedicated single-size machine is cheaper than a wide size window.
- Your main problem is defect rate rather than speed: add an inspection machine before buying more forming capacity.
Send us your container sizes, board specification and target output per month. Our engineers will size the right model and confirm the tooling before you order.
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FAQs:
What is the largest barrel the LM-K4-65 can form?
It forms rectangular paper barrels up to 290 mm across, with heights from 40 mm to 150 mm.
What speed does the LM-K4-65 reach?
The machine runs at 55-65 barrels per minute, about 33,000-39,000 large barrels in a 10-hour shift.
What are the power and space requirements?
It needs 380 V / 36 kW power, 0.8 cubic metres per minute of compressed air, floor space of L3800 x W1950 x H1980 mm and weighs 10,000 kg net.
What is the lead time and how is the LM-K4-65 shipped?
Standard lead time is 30 to 35 working days after the deposit. The machine is packed in a fumigated export wooden case with moisture protection, shipped by sea as a full container or groupage, and delivered with a full spare parts kit, tooling set and English manuals.
Do you provide installation, training and after-sales service for the LM-K4-65?
Yes. Every machine is tested with your container size before shipment, and we provide installation guidance, operator training videos and remote commissioning support. Engineers can be dispatched for on-site commissioning, and wearing parts are stocked for long-term supply.
Can the LM-K4-65 be customised for special sizes, board or voltage?
Yes. The tooling set is made for your target size range, and the electrical system can be built for the local voltage and frequency of your country. Optional units such as online inspection, paper blank feeders and embossing can be added at the time of order.
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