Baler Knowledgebase / FAQ
The baler knowledge base considered as baling machine dictionary, provides our world wide customers very convenient database for answers and information sharing about hydraulic baling press machines especially waste recycling baler and other related waste compactors and recycling industry information. Sinobaler is here ready to service you through our yearly accumulated technical experience and huge internal database.
Metal baler is the most popular choice. It provides strong compression for dense bales and is suitable for continuous and heavy-duty operation.
- When springs are mixed with foam, fabric, wood, or other materials.
- When you need smaller particle size for melting or further processing.
- When higher bale density is required for maximum loading capacity.
- High carbon steel material is strong and durable, suitable for high-pressure baling.
- Good elasticity& tensile strength springs compress tightly under hydraulic pressure.
- Bulky but compressible loose springs take up space but can be compacted into dense bales.
- Baled springs are easy to stack, store and ship to steel mills.
Yes, they can. Mattress springs can be baled directly without shredding in most cases. They are long, strong, and made of high-carbon steel, making them ideal for direct compression.
When it comes to textile recycling, both lifting chamber balers and bagging balers are widely used—but which one is truly the best for your needs? At SINOBALER, this is one of the questions we hear most often. Drawing on years of hands-on experience, we’ve put together a clear guide to help you choose the right baler with confidence.
1. Lifting Chamber Baler – Ideal for Clothing and Textile Recycling
What It Does Best
- Specifically designed for used clothes, rags, towels, and textile waste
- Chamber lifts up, making tying, wrapping, and bale removal easy
- Supports manual wrapping using plastic or woven bags to protect textiles
- Can be operated by a single person, saving labor
- Typical bale weight: 40–500 kg
Popular Baling Machines in SINOBALER
Key Advantages
- ✔ Excellent for second-hand clothing export
- ✔ Produces clean, square bales with a professional presentation
- ✔ Flexible wrapping options, which is important for resale markets
Limitations
- ❌ Requires more manual work for tying and handling
- ❌ Lower automation and throughput compared to continuous systems
2. Bagging Baler – Best for Loose Fiber and Bulk Materials
What It Does Best
- Compresses and bags in a single step
- Typical bale weight: 1–20 kg
- Ideal for:
- Cotton fiber
- Wool
- Synthetic fibers
- Biomass or other loose textile materials
Popular Baling Machine in SINOBALER
Key Advantages
- ✔ Faster operation (no separate wrapping step)
- ✔ Cleaner handling (bales come already bagged)
- ✔ Works well with loose, fluffy materials
Limitations
- ❌ Not suitable for wearable clothes or sorted garments
- ❌ Limited flexibility in bale shape and presentation
- ❌ Less preferred by buyers in the second-hand clothing market
🧠 How to Choose the Right Baler
Choose a Lifting Chamber Baler if:
- You handle:
- Used clothes
- Sorted garments
- Export textiles
- You need:
- Clean, well-shaped bales
- Manual quality control for resale purposes
- Your business focus is:
- Clothing recycling
- Second-hand clothing export
✅ This is the most common choice for textile recyclers worldwide.
Choose a Bagging Baler if:
- You handle:
- Loose fiber (cotton, polyester, wool)
- Shredded textiles
- You want:
- Faster, more automated workflow
- Minimal manual labor
- Your output is:
- Raw material for further processing, not wearable goods
💡 Simple Rule of Thumb
- 👕 Clothes → Lifting Chamber Baler
- 🧵 Fiber / fluff → Bagging Baler
Based on SINOBALER’s extensive experience, customers using bagging balers generally prefer smaller textile bales ranging from 1 to 20 kg, with around 10 kg considered ideal. In contrast, textile bales produced by lifting chamber balers are typically larger, usually over 40 kg, making them perfect for clothing export and resale markets.
Watch demo operations from SINOBALER various textile balers.
Typical demo operation by SINOBALER baling machines:
- Efficient lifting chamber baler for used clothes
- Rags baling with scale weighing horizontal bagging baler
- Automatic weighing vertical bagging baler for clothes and rags
Quick links:
Ejecting a bale from a baler depends on the type of baler (vertical or horizontal) and the material being baled. Here’s a detailed guide:
Safety First
- Ensure the baling cycle is fully complete and the compression ram is fully retracted.
- Clear the area around the ejection path.
- Use appropriate PPE (gloves, shoes, safety goggles).
The Type of Balers
- Common for: Small to medium bales, light materials like cardboard, textiles, aluminum, or plastic.
- Steps to Eject:
- Ensure the baling cycle is complete and the ram is fully retracted.
- Open the front door or chamber door.
- The compressed bale usually drops onto the built-in floor or rollers. You may need to push it slightly with a lever or tool.
- Remove the bale manually or with a pallet jack/forklift if needed.
- Close the door and reset the baler for the next cycle.
- Ensure the baling cycle is complete and the ram is fully retracted.
- Common for: Larger bales, heavier materials like metals, plastics, hay or textiles.
- Steps to Eject:
- Complete the baling and tying cycle.
- Activate the bale ejection system (often hydraulic). This pushes the bale out of the compression chamber. For fully automatic balers, the system automatically ejects the bale onto a conveyor or into a receiving area after compressing and tying.
- The bale is pushed onto the bale chute, conveyor, or floor, depending on the model. For fully automatic balers, operators only need to ensure the path is clear for the bale.
- Use a forklift, pallet jack, or grabber to move the bale to storage or shipment.
- Complete the baling and tying cycle.
Manual or the Available Equipment
1. Manual Handling (Small Bales)
- Suitable for lightweight bales.
- Steps:
- Ensure the baler has completed the compression and tying process.
- Open the ejection door carefully.
- Slide the bale out onto a pallet or a flat, stable surface.
- Use proper lifting techniques to avoid injury (bend knees, keep back straight).
- Ensure the baler has completed the compression and tying process.
⚠️ Safety tip: Always wear gloves and steel-toed shoes when handling metal bales.
2. Using a Forklift or Pallet Jack
- Recommended for medium to large bales.
- Steps:
- Position the forklift or pallet jack at the end of the baler where the bale is ejected.
- If the baler has a bale chute or roller table, let the bale slide onto it first.
- Lift the bale carefully using forks or a pallet, ensuring the load is balanced.
- Transport the bale to storage or shipping area.
- Position the forklift or pallet jack at the end of the baler where the bale is ejected.
💡 Many balers have a built-in roller conveyor that helps bales slide onto a pallet or forklift platform automatically.
3. Using a Grabber or Crane (Heavy/Industrial Bales)
- For very heavy bales (eg. large metal bales).
- Steps:
- Attach a bale grabber or hook to the crane.
- Engage the grabber securely around the bale.
- Lift the bale gently and move it to the storage area.
- Release the bale slowly, ensuring it lands safely.
- Attach a bale grabber or hook to the crane.
⚠️ Safety tip: Always check that the crane or grabber’s lifting capacity exceeds the bale weight.
General Tips
- Always wait until the compression ram has fully retracted before opening doors.
- Regularly maintain rollers or conveyor systems to ensure smooth bale movement.
- Keep hands and tools clear of the ejection path to avoid injury.
- For heavy bales, always use mechanical assistance (forklift, grabber, or conveyor).
- Check the baler’s manual for specific ejection controls and safety interlocks.
Feeding materials into a baler can be done in various ways depending on the type of materials, the equipment involved, and the setup of the baling system. Here’s a breakdown of some common feeding methods:
1.Excavator:
- Used for: Large, bulkier materials like scrap metal, wood, or other heavy materials.
- How it works: An excavator with a bucket or grapple is used to load materials into the hopper or feed opening of the baler. The excavator can precisely place materials into the feeding area.
- Advantages: Ideal for large-scale operations, especially when materials are heavy or difficult to move manually.
2. Air Cyclone:
- Used for: Light, fluffy materials like paper, plastic, or other recyclables that need to be separated from dust and debris.
- How it works: An air cyclone system uses airflow to move lightweight materials into the baler. It can also help in separating light materials from heavy ones before they enter the baling chamber.
- Advantages: Great for automating the process and improving efficiency when dealing with fine materials or mixed waste.
- Used for: Continuous feeding of materials like cardboard, plastics, textiles, or paper.
- How it works: Materials are loaded onto a conveyor belt, which moves the materials to the baler’s feed hopper. The conveyor can be configured to run automatically or manually, depending on the material flow and system design.
- Advantages: Ideal for continuous, high-volume feeding, especially in automated recycling plants or warehouses.
4. Dumper (Tippers):
- Used for: Materials in bins or containers, such as industrial waste, textiles, or recyclables.
- How it works: A dumper or tipper lifts a container of materials and dumps it directly into the baler’s feed hopper. This is often seen with bulk bins or compacted waste.
- Advantages: Simple and effective for large quantities of materials that are pre-loaded into containers. It reduces manual labor and speeds up the feeding process.
5. Other options:
- Manual Feeding: For smaller-scale operations or when dealing with materials that require sorting, workers might feed materials directly into the baler using forklifts or by hand.
- Forklift: Can be used to lift and drop larger bales or materials into the baler’s feed area.
Each of these methods can be adapted based on the specific baling process, material type, and operational needs. For maximum efficiency, it's important to match the feeding method to the material characteristics and volume.
Why finding a suitable steel wire size is important to your machine as well as operations? In order to ensure smooth operation for your Automatic Horizontal Baler, you need to prepare suitable baling wires. A steel wire thinner than the suggested size will likely keep breaking during the tying process which will greatly affect efficiency. Following is the information of the suitable steel wire sizes for different model of SHBA2 series:
A wide variety of materials can be baled, depending on the baling equipment and intended recycling or disposal process. Here's a breakdown by category:
Paper & Cardboard
• Cardboard boxes (OCC)
• Office paper (white paper)
• Newspaper
• Paper cores and tubes
• Tissue and toilet paper waste
• Paper bags
• Mixed paper
Textiles
• Used clothes
• Rags and wipers
• Fabric scraps
• Carpets and rugs
• Shoes
• Non-woven textiles
Plastics
• PET bottles
• HDPE/LDPE containers
• Plastic films and shrink wraps
• Plastic drums and barrels
• Rigid/stiff plastic items
• Plastic bumpers
• Plastic purges and sprues
• PP woven bags
• Waste plastic sheets
Metals
• Steel cans
• Aluminum cans and scraps
• Iron scrap
• Copper tubes
• Cast iron scrap
• Turnings and borings (ferrous and non-ferrous)
• Nickel alloys
• Other non-ferrous metals
Biomass & Agricultural Waste
• Hay, straw, and alfalfa
• Husk (e.g., rice husk, peanut shell, coffee husk)
• Bagasse
• Seaweed
• Coco peat
• Cotton seed
• Compost
• Peat moss
Wood Waste
• Wood shavings and sawdust
• Wood chips
• Wood offcuts
Other Industrial & Special Waste
• Tires and rubber
• Bead wires from tires
• Paint tins and buckets
• Waste barrels
• Foam (PUR, etc.)
• Tipping foils
• Mixed waste (e.g., MSW or RDF input)
Browse our baler applications to discover the best machine for your needs.
Mill Size Balers
1. Purpose
A quick installation and operation guide to teach you how to install and operate the machine correctly.
2. Tools Required
• Forklift: To lift and move the machine
• Three-phase power: Power for machine
• Hydraulic oil: For hydraulic system
• Fuel transfer pump: To pump hydraulic oil into oil tank
• Screwdriver: To connect power wires
3. Baler Structure
4. Inspecting the Machine
• Ensure the baler is placed on level ground.
• Check if the power switch and wires for loose connection or damages.
• Check the safety devices are complete and effective.
• Check if the hydraulic hose, joints are firmly fastened.
• Check for loose wires in cabinet, and/or machinery screws, tighten if necessary
5. Installation and Operation
5.1 Connect the power supply
Make sure the voltage range meets the machine requirements.
Wires of electrical box => There are three live lines and one earth line.
The colors of wires comply with Chinese standard:
• Phase A – yellow
• Phase B – green
• Phase C – red
• Earth – yellow/green
Note: Connect the earth wire to the wiring terminal
5.2 Fill Hydraulic Oil
Fill hydraulic oil through “Oil filler” until reaches “Best Oil Level”.
The requirements of the suitable hydraulic oil in different ambient temperature:
NOTE: If your machine is using Plunger Pump, it is important that clean hydraulic oil is in the pump before running the machine in order to lubricate the bearings and transmission system. Refer to “How to refill oil to Plunger Pump” if you need further information.
5.3 Turn on the main switch and observe for abnormality
5.4 Start motor and then immediately stop
Observe the rotation from the motor fan. If the motor rotates in wrong direction (not as per the red arrow), inter-change any two phases of the three-phase power supply wires.
Start the motor and hydraulic pump to run it for about 1-3 min, then observe hydraulic pump, check if there is any abnormality like unusual noise or smell. If yes, switch off the machine immediately. Investigate the cause and eliminate abnormality. Proceed to restart motor once problem is rectified.
5.5 Check for Oil Leakage
If leakage is detected, rectify the cause or contact SINOBALER immediately.
5.6 Check Oil Temperature
If the oil temperature is below 10 ° C, it is recommended to run the motor for a few minutes (do not load the machine with material or operate the platen at this point).
Begin to operate the machine once the oil temperature is above 10 ° C.
5.7 Test Running (without Material)
Control Panel
• Back (a): Move ram upwards
• Power Indicator Light (b): Light will be on when power is on
• Start (c): Start the motor
• Press (d): Move ram downwards
• Switch (e): Select “Auto” mode and “Manual” mode (see picture below)
• Stop (f): Stops the machine once pressed. To resume operation, just rotate the button clockwise as per the direction of arrow to reset.
** Go to Control Panel and switch to “Manual” mode **
• Close the chamber door and feeding door, turn on the main switch and start the motor.
• Press “PRESS” button and hold, observe if the platen moves downwards steadily, no jam or abnormal sound.
• Press “BACK” button and hold, observe if the platen moves upwards steadily back to home position.
• Press “STOP” (red) button and check whether machine shuts down / motor stops (after that, turn it clockwise to reset the stop button).
Suggest to test run the above steps 2-4 times under “Manual” mode.
** Go to Control Panel and switch to “Auto” mode **
• Close the chamber door and feeding door, turn on the main switch and start the motor.
• Press “PRESS” button (just press once, no need to hold), platen will move downwards automatically.
• When the ram move downwards and trigger the bale height sensor, it will move upwards automatically.
Suggest to test run the above steps 2-4 times under “Auto” mode.
5.8 Trial Production
• According to auto mode test running steps, feed material into chamber from feeding door until full and begin baling cycle by pressing the “PRESS” button. Repeat step again.
• Platen will stop when achieved the pre-set bale height. Bale height is adjustable by moving the “Bale Height Adjust Block” as per picture below.
• Once the platen stops and not returning to home position, open the chamber door by turning the decompression wheel, and proceed to strap the bale.
• Hang the ejector chains on platen at the back of machine.
• Press “BACK” to move the platen upwards and bale will be ejected out in this process. DO NOT stand in front of baler during ejecting.
• Repeat the next baling cycle. The bale ejector chains will release automatically when the platen press down for the next compressing cycle.
Caution:
• During test running, inspect the machine for any abnormality (i.e. abnormal noise, leakage, etc.). Check the machine again after test run. If all normal, you can start mass production.
• DO NOT remove or override any safety guards or switches to operate the machine.
• Do not start and stop motor too frequently as it may burn the motor.
6. End of Operations
• Move platen upwards to home position
• Reset the ejector chains
• Clear away any residual material in chamber and close chamber door
• Close feeding door
• Turn off motor by pressing the Stop button
• Switch off main power
• Clean the machine and its surrounding
• Arrange tools neatly, and clean-up site / work area
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