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I need a complete engineering package for a mobile shredder that turns mixed vegetable waste into 3-5 cm pieces and then compacts it with a built-in hydraulic press. The machine must comfortably handle 50–200 kg of material per day and be light enough to move around the farm on a small trailer or skid. Core requirements • Cutting system sized for fibrous, high-moisture vegetable matter; knives or hammers should minimise clogging and be easily replaceable. • Consistent particle size of 3–5 cm without excessive fines. • Integrated hydraulic ram (manual, electric, or engine-driven—justify choice) that compresses the shredded output into manageable bales/blocks. • Power options: single-phase 230 V, small diesel/petrol engine, or tractor PTO—show calculations for each and recommend the most practical. • All components dimensioned for corrosion resistance and easy wash-down. • Safety features that meet typical agricultural machinery standards (guards, emergency stop, relieve valves). Deliverables 1. 3D CAD model (STEP or SolidWorks) and 2D fabrication drawings. 2. Bill of materials with suggested suppliers. 3. Motor/hydraulics sizing sheet, torque and force calculations, and basic FEA for critical shafts and press frame. 4. Assembly and maintenance guide with exploded diagrams. 5. Cost estimate to build one prototype and notes on scaling to small-batch production. Acceptance criteria: the design must show, via calculation or simulation, that it can process 200 kg of waste within eight hours and achieve at least a 2:1 volume reduction after compaction. Please outline your proposed workflow, the software you intend to use, and any similar agricultural machinery you have designed before.
Project ID: 40290315
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10 freelancers are bidding on average $294 USD for this job

Welcome I MADE MANY SMART DEVICES THAT MANUFACTURED AND USED IN REAL YOU WILL GET IT DONE PERFECTLY IN LESS TIME CHECK MY LATEST REVIEWS > (http://www.freelancer.com/u/ENG1mga) I have previously worked on, Lifting Set of Drones Mechanism, Robotic Arm, Delivery Robot, Automatic Wiring Machine, Solenoid Engines, Car Rooftent, Boat Lift Mechanism, Shoe Treadmill Mechanism Mechanical Ventilator and many other projects. I use Solidworks, Fusion 360, and ANSYS, COMSOL I have a workshop specializing in all 3D printing and CNC machining work, so I strive to provide the highest quality and precision. What you will receive with me: - 2D drawings - 3D files - Complete Tech. Formats - Finite Element Analysis (FEA) (if needed).
$200 USD in 2 days
6.8
6.8

Hi there, I would be happy to assist with the design and development of the portable farm waste shredder. With expertise in mechanical design, CAD modeling, and engineering analysis, I can develop a practical and manufacturable solution for shredding and compacting agricultural waste. Approach: Concept design of the shredder and hydraulic compaction system based on the required 3–5 cm particle size and 50–200 kg/day capacity. Design of cutting mechanism (knife or hammer type) optimized for fibrous and high-moisture vegetable waste to prevent clogging. Selection and sizing of power options (230 V motor, petrol/diesel engine, or tractor PTO) with torque and performance calculations. Design of hydraulic ram system and structural frame for reliable compaction. Basic FEA of critical shafts and press frame to ensure structural integrity and safety. Deliverables: 3D CAD model (STEP or SolidWorks) and detailed 2D fabrication drawings. Bill of materials with recommended components. Motor and hydraulic sizing calculations with engineering notes. Basic FEA results for key components. Assembly guide, maintenance instructions, and prototype cost estimation. Timeline: To be determined after discussing project scope. Budget: Open to negotiation based on complexity. Looking forward to collaborating on this project. Let’s connect to discuss further. Best regards, Arati M.
$20 USD in 7 days
6.4
6.4

Hello ! I’m a mechanical design engineer with over four years of experience designing industrial and agricultural machines for real-world manufacturing. I have developed complete engineering packages for equipment such as processing machines, mechanical systems, and farm machinery, including full 3D CAD models, detailed fabrication drawings, BOMs, and calculation sheets. My portfolio already includes several agricultural machines built for practical field use, so I understand the importance of durability, easy maintenance, corrosion resistance, and safe operation in farm environments. I will design your machine to consistently produce 3–5 cm pieces while minimizing clogging and wear. I will also engineer the integrated hydraulic press with proper force calculations and ensure the frame, shafts, and critical components are validated through calculations and basic FEA. The system will be designed for mobility on a trailer or skid, easy wash-down, and compliance with typical agricultural safety practices. I work with SolidWorks and will deliver a complete engineering package including 3D CAD files, 2D manufacturing drawings, a detailed BOM, motor and hydraulic sizing calculations, exploded views, etc. I can share additional examples of similar agricultural machines in the chat. I’m ready to start immediately and can move quickly from concept to a fully manufacturable design.
$2,000 USD in 7 days
4.4
4.4

Hello, I hope this message finds you well. My name is Rade, a mechanical engineer from Belgrade, Serbia, with over nine years of experience in mechanical design and development of industrial machines using SolidWorks. I have worked on complex mechanical systems that required detailed engineering documentation, structural calculations, and designs optimized for manufacturing and real operating conditions. Your project is particularly interesting because it combines shredding and hydraulic compaction into a single mobile agricultural machine. I can design a reliable cutting system suitable for fibrous, high-moisture vegetable waste, ensuring consistent particle size while minimizing clogging and allowing easy maintenance and blade replacement. I can also design and size the hydraulic press system, including force calculations and evaluation of different power options such as electric motor, engine, or tractor PTO, recommending the most practical solution. The machine structure can be optimized for corrosion resistance, easy wash-down, and safe operation in farm environments. The final engineering package can include a full 3D CAD model, detailed fabrication drawings, optimized BOM, mechanical and hydraulic calculations, and basic FEA for critical components, along with assembly and maintenance documentation. I would be glad to review the project requirements and discuss the workflow. Best regards, Rade
$20 USD in 7 days
4.2
4.2

Mobile shredder with integrated hydraulic compactor for farm use — complex brief, but every deliverable here is within my wheelhouse. Fibrous, high-moisture vegetable waste is one of the nastier inputs for a cutting system — clogging, blade wear, inconsistent sizing. I've sized cutting systems for exactly this material behaviour. I'll justify knife geometry, tip speed, and screen sizing before anything gets modelled. My workflow: Cutting + hydraulic system sizing first — calculations drive the CAD, not the other way around 3D model in SolidWorks + STEP export, 2D fabrication drawings ready for any local fabricator FEA on critical shafts and press frame — no guesswork on structural safety Full BOM with supplier options, cost estimate for prototype + small-batch notes Assembly + maintenance guide with exploded views Power recommendation will come with actual calculations for all three options — I won't just pick one without showing the numbers. One question — is tractor PTO realistically available on your farm, or should I prioritise the electric + diesel options in the analysis? That single answer saves two days of scoping.
$20 USD in 2 days
3.1
3.1

I’ve specialized in mobile agricultural machinery design, recently completing a compact biomass processor where I optimized blade geometry to handle high-moisture organic matter without clogging. For your portable shredder, the primary challenge lies in maintaining a consistent 3-5mm output while ensuring the frame remains lightweight and balanced for easy transport across uneven farm terrain. I bring a deep understanding of mechanical torque requirements and material fatigue, ensuring your engineering package is not just a concept, but a robust solution ready for immediate manufacturing and rugged field deployment. My technical approach involves a full 3D CAD development in SolidWorks, incorporating Finite Element Analysis (FEA) to validate the structural integrity of the chassis against intense operational vibrations. I will design a high-shear rotor system specifically tuned for the fibrous nature of mixed vegetable waste, utilizing an interchangeable sizing screen to guarantee the precise 3-5mm granulometry you require. The final package will include comprehensive 2D fabrication drawings with ISO tolerances, a categorized Bill of Materials (BOM) for off-the-shelf component sourcing, and assembly instructions optimized for CNC laser cutting and standard welding processes. Do you have a specific power source in mind, such as a tractor PTO or a standalone diesel engine, and what is your required hourly processing capacity? I’m also curious if you have a preference for blade material—like Hardox 500—to maximize service life against abrasive residues often found in farm waste. I’m available for a brief chat or a call to clarify these technical parameters and ensure the final design aligns perfectly with your operational goals and manufacturing budget.
$215 USD in 21 days
0.0
0.0

Dear Client, I am confident in delivering a comprehensive engineering package for your mobile shredder that meets all outlined requirements with precision and quality. My skill set positions me well to execute this successfully. I understand the need for a clean, integrated cutting system that handles fibrous, high-moisture vegetable waste and an automated hydraulic press ensuring consistent 3–5 cm particle size and volume reduction. With expertise in AI automation, web/app development, and digital solutions, I bring a structured approach to design and simulation. While I am new to Freelancer, I have strong real-world experience and have completed multiple successful projects off the platform. What timeline are you envisioning for prototype completion and testing? Best regards, Mpumelelo Mabena
$16 USD in 14 days
0.0
0.0

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Member since Mar 10, 2026
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