Projects & Case Studies
Unrolling straw bales with a smaller shredder: can it reach 1 ton per hour?
When customers need to process about 1 ton of straw per hour but their investment budget does not allow for a larger model, many ask whether unrolling straw bales with a smaller shredder is possible.
The answer is that this option can be considered, but it is not a standard solution, nor does it mean that a smaller model will automatically reach 1 ton per hour after its configuration is changed.
In this case, GREEN MECH can study an option in which the straw bales are unrolled before shredding, followed by the use of a GM-0406 customized with increased motor power and an adjusted gearbox ratio.
However, once the motor or gearbox has been changed, the machine no longer retains its standard configuration. The ability to reach the desired capacity must be calculated by the engineering team, tested with the material, and confirmed before the solution is finalized.
MỤC LỤC
Why can unrolling the bales make a smaller model worth considering?
Straw in bale form and straw that has been unrolled create two different feeding conditions.
If a full bale is fed directly into the machine, the size of the input material becomes an important factor in model selection. The machine must have a suitable configuration to receive and process the material in this form.
By contrast, when the straw bale is unrolled first, the material is no longer fed into the machine as one intact bale. This creates an additional possibility of considering a smaller machine configuration.
Therefore, for customers with a limited budget, instead of simply increasing the machine size, GREEN MECH can evaluate another approach:
Unroll the bales first → use the GM-0406 → customize the drive configuration → test whether it can meet the capacity requirement.
This is an engineering approach for balancing production needs and investment levels, not a formula that applies in the same way to every line.
Can you unroll straw bales and use a smaller model?
Yes, but the nature of the option must be understood correctly.
The standard GM-0406 should not be assumed to be a configuration that will reliably process 1 ton of straw per hour simply because the bales have been unrolled.
The option under consideration is a customized GM-0406, with two main items that may be changed:
Increase motor power
One direction that can be studied is increasing the motor power compared with the model’s standard configuration.
The purpose is to create a drive configuration that better matches the material-handling requirements and the capacity the customer expects.
However, the specific motor power must be confirmed by the engineering team. The motor should not simply be increased without calculating the related system components.
Adjust the gearbox ratio
Along with the motor, the gearbox ratio may also need to be adjusted.
The motor and gearbox must be considered as one system. Changing one component can affect how the machine operates, so the gearbox ratio should not be selected separately.
The final configuration must be calculated by GREEN MECH engineers based on the material, required capacity, and test results.
A customized GM-0406 is no longer a standard configuration
This is a point that customers should note carefully.
When the motor power or gearbox ratio of the GM-0406 is changed, the resulting solution is no longer completely the same as the original standard configuration.
This leads to three issues that must be confirmed.
- First, the machine’s actual ability to process straw must be reassessed.
- Second, the target capacity of about 1 ton per hour must be verified rather than inferred from the model name.
- Third, the investment cost will change according to the selected motor and gearbox configuration.
Therefore, a preliminary proposal for a customized GM-0406 is not yet an official technical specification or a final quotation.
Comparing the two options
| Criterion | Use a Model Suited to Baled Straw | Unroll the Bales + Customized GM-0406 |
|---|---|---|
| Input condition | May process full bales under the selected solution | Bales must be unrolled before shredding |
| Preparation | Fewer additional bale-unrolling steps | Adds a bale-unrolling step |
| Machine configuration | Based on the model selected by the engineering team | No longer the standard GM-0406 configuration |
| Motor | Based on the approved configuration | May require increased power |
| Gearbox | Based on the approved configuration | May require a different ratio |
| 1 ton per hour target | Requires engineering confirmation | Requires engineering calculations and testing |
| Cost | Depends on the selected configuration | Changes according to the motor and gearbox |
| Required step | Engineering approval | Engineering approval and testing |
Trade-offs when choosing the bale-unrolling option
An additional bale-unrolling step
The advantage of this option is that it creates the possibility of considering a smaller model.
In return, the customer must unroll the straw bales before feeding the material into the 2 shaft grinding technology straw crusher.
This may affect how labor and the feeding process are organized. The specific impact depends on the actual line and must be confirmed by the engineering team.
The machine requires a custom configuration
In this case, the GM-0406 is no longer an option in which the customer can simply take a standard machine and put it into operation.
The motor and gearbox ratio may have to be changed to suit the production target.
Customers therefore need to accept that this configuration is developed specifically for their particular requirements.
The machine cost is no longer the same as for the standard configuration
A smaller model does not mean that the cost will necessarily decrease by a fixed proportion.
When motor power is increased and the gearbox is changed, the cost changes accordingly.
Because there is not yet an official technical configuration, GREEN MECH should not provide a price or conclude how much will be saved before completing the calculations.
When should a customized GM-0406 be considered?
This option is worth including in the evaluation when a customer has all three of the following requirements:
- A target of processing about 1 ton of straw per hour.
- The ability to unroll the bales before feeding the straw into the shredder.
- An interest in studying a lower-investment option than directly selecting a larger configuration.
However, these are only conditions for considering the option, not proof that the machine will meet the requirement.
The next step must still be engineering analysis and material testing.
Why should sample testing not be skipped?
When a model is customized beyond its standard configuration, sample testing becomes even more important.
Testing helps GREEN MECH check how the unrolled straw enters the machine, the processing ability of the proposed configuration, and its suitability for the target capacity.
If the results are not suitable, the engineering team has a basis for adjusting the solution instead of having the customer invest based on an assumption.
This is also why GREEN MECH does not guarantee that a customized GM-0406 will reach 1 ton per hour before the calculation and verification process has been completed.
Should you unroll the bales and use a smaller model?
If the question is whether you can unroll straw bales and use a smaller model, the answer is that this option can be considered.
GREEN MECH can study a customized GM-0406 by increasing the motor power and adjusting the gearbox ratio. This option may help customers rebalance their investment plans if they accept the additional bale-unrolling step.
However, three points must be emphasized:
- A customized GM-0406 is not a standard configuration.
- The machine cannot be assumed to reach 1 ton per hour.
- The final configuration must be calculated, tested, and confirmed by the engineering team.
Send a sample so GREEN MECH can check a suitable solution
Customers considering unrolling the bales and using a smaller model should send GREEN MECH the following information:
- The type of material to be shredded.
- The condition of the straw and its input size.
- The desired output size.
- The required capacity.
- Power-supply conditions.
- The available installation area and site conditions.
Based on this information, GREEN MECH can evaluate the possibility of using a customized GM-0406, identify the items that need to be changed, and propose sample testing before the configuration is approved.
The goal is not to choose the smallest or largest model, but to find a suitable balance among the material, capacity, operating process, and the customer’s actual budget.
You can also browse our projects case studies.
To discuss your straw sample, output requirements, and a suitable configuration, contact GREEN MECH through kynghexanh.com.vn or call +84 94 110 8888.