ONE STOP SOLUTION
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-R4-70 Rectangular Paper Bowl Machine
LM-R4-70 rectangular paper bowl machine: max width 115 mm, height 40-150 mm, 55-70 pcs/min, 29 kW, 8,800 kg.
Quick Answer: What Is The LM-R4-70?
The LM-R4-70 is a rectangular paper bowl machine that forms rectangular and square paper bowls at 55-70 pcs/min. It is powered by 29 kW, needs 0.8 m³/min of compressed air, and ships in 30-35 working days. It is built for salad, deli and ready-meal packaging suppliers.
The LM-R4-70 produces rectangular and square paper bowls, the format that takeaway brands and meal prep suppliers use to stand out from the standard round bowl. It forms bowls up to 115 mm across with heights from 40 mm to 150 mm at 55-70 pcs/min.
The machine runs on the double cam shaft platform of the high speed family, which gives rectangular forming the mechanical stability it needs to keep corners sharp and sealed.
What Is A Rectangular Paper Bowl Machine?
A rectangular paper bowl machine is an automatic forming machine that turns pre-printed, die-cut paper blanks into finished rectangular paper bowls 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-R4-70 keeps every station in mechanical phase. That is why it can hold 55-70 pcs/min with a single operator, and why output stays consistent across long shifts for salad, deli and ready-meal packaging suppliers.
Feature:
- Rectangular and square bowls – differentiated takeaway format
- Width up to 115 mm – single portion meal bowls
- Height 40-150 mm – from shallow trays to deep bowls
- 55-70 pcs/min – commercial output for a non-round format
- Double cam shaft platform – accurate corner forming
- 8,800 kg heavy frame – stable with high forming force
Application:
The LM-R4-70 fits converters serving brands that want a square bowl:
- Takeaway meal bowls for delivery brands
- Salad and poke bowls for restaurant chains
- Meal prep containers for grocery retailers
- Square dessert and cake bowls
Square bowls stack and pack differently from round bowls, so the LM-R4-70 is usually paired with our packing machine to build a complete non-round line.
Machine Parameters:
| Item | Specification |
| Model | LM-R4-70 |
| Bowl Size | Max 115 mm, height 40-150 mm |
| Production Speed | 55-70 pcs/min |
| Power Supply | 380 V / 29 kW, 50 Hz |
| Air Consumption | 0.8 m³/min |
| Net Weight | 8,800 kg |
| Dimension | L3440 × W1650 × H1800 mm |
How Does The LM-R4-70 Work?
The LM-R4-70 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:
- Corner Forming Accuracy: rectangular bowls fail at the corners first; the cam driven tooling closes corners with even pressure.
- Wide Height Range: 40-150 mm lets one machine make shallow trays and deep bowls.
- Heavy 8,800 kg Body: the rectangular forming stroke needs a rigid frame to stay repeatable.
- Double Cam Shaft Platform: same drive family as our round bowl machines, so service know-how transfers directly.
- 55-70 pcs/min Sustained: achievable production speed on rectangular formats.
What Can The LM-R4-70 Produce?
| Product | Typical Size | End Use |
| Square meal bowl | 100-115 mm, deep | Delivery brands, restaurants |
| Rectangular salad bowl | 90-115 mm | Poke and salad chains |
| Meal prep tray | 115 mm, 40-70 mm high | Grocery retail |
| Dessert bowl | 80-100 mm, shallow | Bakeries, dessert shops |
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 | 4,200 bowls |
| Per 10-hour shift | 10 h | 42,000 bowls |
| Per day (2 shifts) | 20 h | 84,000 bowls |
| Per month (26 days, 2 shifts) | 520 h | 2,184,000 bowls |
Figures are calculated at the rated top speed of 55-70 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-R4-70 The Right Machine For Your Factory?
Choose the LM-R4-70 if:
- You need 55-70 pcs/min of steady output and want one machine to cover rectangular bowls up to 115 mm across and 40-150 mm in height.
- You supply salad, deli and ready-meal packaging suppliers 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.
Related Lee Machinery Models
FAQs:
What rectangular bowl sizes can the LM-R4-70 make?
It makes rectangular and square bowls up to 115 mm across with bowl heights from 40 mm to 150 mm.
Is 55-70 pcs/min normal for a rectangular bowl machine?
Yes. Rectangular forming is slower than round forming because the corners need extra forming time; 55-70 pcs/min is a strong sustained figure for this format.
What utilities does the LM-R4-70 require?
It needs 380 V / 29 kW power, 0.8 cubic metres per minute of compressed air, floor space of L3440 x W1650 x H1800 mm and carries 8,800 kg net weight.
What is the lead time and how is the LM-R4-70 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-R4-70?
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-R4-70 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.
Contact Our Expert
Lee Machinery Series:
Offset Printing Machines
- 8-color Plastic Bowl Cup Printing Machine
- 7-color Plastic Bowl Cup Printing Machine
- 6-color 6A Plastic Bowl Cup Printing Machine
- 6-color 6B Plastic Bowl Cup Printing Machine
- 4-color Plastic Bowl Cup Printing Machine
- 6-color Plastic Cup Bowl Basin Printing Machine
- 6-color Plastic curved barrel Printing Machine
Silk Screen Printing Machines
Paper Cup Making Machines
Injection Molding Machines
Inquiry For A Solution:
Curved Offset Printing Machine Series
