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I need a robust tow-behind rock picker that my 100 hp tractor can handle comfortably in broadacre agricultural fields. The machine must reliably lift and collect medium-sized stones—roughly 3 in to 6 in diameter—without clogging or excessive wear, and it has to stay stable on a mix of flat paddocks and rolling rises. Key functional expectations • PTO or tractor-hydraulic drive sized for the 100 hp class • Adjustable tine or reel system that scoops, separates soil, and drops rocks into a bin without excessive soil carry-over • Ground-following frame or suspension so the picker tracks evenly across uneven terrain • Simple, low-maintenance bearings, chains, and wear parts that a farm workshop can source locally • Safe unload mechanism that tips or conveyors the collected load clear of the working area Deliverables • Full 3D CAD model and assembly (SolidWorks, Inventor, or comparable) • Fabrication drawings (PDF + native DWG/DXF) with weld symbols, material call-outs, and critical tolerances • Complete bill of materials with readily available components—hydraulic cylinders, bearings, sprockets, etc. • Basic operating guide outlining hookup, flow/pressure requirements, and service intervals I will review the drawings against my tractor dimensions, so please include overall transport width, hitch type, and estimated operating speed. If you have past farm-implement work or stress analyses, sharing a sample render or FEA screenshot with your proposal will help me choose quickly. I’m available to clarify field conditions, soil type, or any other details you need. My tractor is a cat 2 hitch connection You must have completed design projects for the agricultural industry in the past if previous project examples
Project ID: 40628036
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I have worked on similar agricultural machinery and heavy equipment design projects, including field implements, welded fabrications, and hydraulically actuated equipment. My experience includes designing machines for manufacturability, durability, and ease of maintenance, with attention to load paths, wear components, and serviceability in demanding field conditions. For your project, I can design a Category II hitch, tow-behind rock picker compatible with a 100 HP tractor, incorporating a ground-following pickup system, efficient soil separation, durable reel/tine mechanism, and a safe hydraulic unloading system. The design will prioritize reliable operation in broadacre conditions while using readily available bearings, chains, sprockets, hydraulic cylinders, and other standard components. Deliverables: Complete 3D parametric CAD assembly (SolidWorks) Manufacturing drawings (PDF + DWG/DXF) with weld symbols, GD&T where required, and material specifications Complete BOM with commercially available components Hydraulic and PTO integration details Overall dimensions, transport width, Category II hitch configuration, and recommended operating speed Basic FEA on critical structural components Operating and maintenance guide One revision round after design review Best regards, Bilal
$250 AUD in 4 days
3.9
3.9
57 freelancers are bidding on average $648 AUD for this job

As an experienced mechanical designer with nearly a decade of work in the field, I believe I am uniquely suited to your project needs. Over the years, I've built a solid foundation in 3D CAD design and assembly, specifically with software like SolidWorks or Inventor, which are directly compatible with your desired deliverables. Not only that, my familiarity with CAT 2 hitch connections is definitely going to be an asset when designing the necessary components for your particular tractor. Lastly, I understand firsthand how essential it is for intricate farm machinery like yours to be serviced reliably from local sources, avoiding unnecessary downtime. In line with your expectations, I pride myself on designing low-maintenance systems with readily available components like bearings and sprockets from farm workshops. With me as your designer, you can expect meticulous attention to detail right down to material call-outs and critical tolerances in the fabrication drawings. I assure you that choosing me would ensure a punctual delivery of quality designs that fit your tractor's dimensions while tackling field conditions intelligently.
$250 AUD in 2 days
7.6
7.6

Hello, With my extensive experience in CAD/CAM, Engineering, and Product Design, I'm confident I can meet and exceed your expectations for this tow-behind rock picker. Having worked on numerous farm implement designs in the past, I understand the unique challenges and requirements of agricultural machinery. This deep industry understanding positions me to deliver the robust yet efficient design you need. Not only can I ensure that my design is compatible with any standard CAT 2 hitch connection like the one on your tractor, but I'll also include meticulous details such as overall transport width and estimated operating speed to make integration seamless. Additionally, I've made a point to source simple, low-maintenance bearings, chains, and wear parts in my designs that can be easily sourced by a local farm workshop - ensuring maximum convenience for you. In terms of deliverables, rest assured knowing that you'll receive more than just design files. You'll have full 3D CAD models and assemblies, comprehensive fabrication drawings and bills of materials with readily available components. And with your safety as a priority, I will provide a basic operating guide outlining hookup instructions, flow/pressure requirements, and service intervals as needed. Choosing me means choosing precision, reliability, and timely delivery. Together we can produce a tow-behind rock picker designed specifically for the needs of your broadacre agricul Thanks!
$555 AUD in 5 days
7.1
7.1

Hello, I am a Mechanical Design Engineer with extensive experience developing products from concept through manufacturing. My background includes robotics, automation systems, lifting mechanisms, consumer products, machine design, structural analysis, and prototype development. Previous projects include robotic arms, delivery robots, automated machinery, lifting systems, drone mechanisms, wearable devices, vehicle accessories, medical devices, and custom electromechanical products. I can support your project with: ✓ Concept development and mechanism design ✓ 3D CAD modeling (SolidWorks / Fusion 360) ✓ Manufacturing drawings and documentation ✓ Design for Manufacturing (DFM) ✓ FEA simulation and validation (ANSYS / COMSOL) ✓ Prototype preparation for CNC machining and 3D printing I also operate with manufacturing support capabilities for CNC machining and 3D printing, allowing designs to be developed with practical production constraints in mind. Please send the project details and I can review feasibility, expected challenges, and the best development approach before we begin. Portfolio and reviews: http://www.freelancer.com/u/ENG1mga Best regards, Mahmoud
$250 AUD in 3 days
6.8
6.8

Hi I understand the challenges involved in designing a 100 HP tow-behind rock picker that is both durable and efficient in harsh field conditions. I can deliver a complete mechanical design with 3D CAD, fabrication drawings, structural validation, and manufacturable assemblies optimized for reliable stone collection and easy unloading. I have extensive experience in agricultural equipment design, structural FEA, and production-ready CAD using SolidWorks and ANSYS. I can also optimize the frame, hitch, conveyor/rake mechanism, and hydraulic components to ensure strength while minimizing weight. One question: Do you already have a reference rock picker model (e.g., Rite Way, Schulte, Degelman) that you want to replicate or improve, or should I develop the design from scratch? Best regards, Arati M.
$500 AUD in 7 days
6.7
6.7

Drawing from my extensive background in engineering, particularly in agricultural solutions, I offer you a unique blend of skills that make me the perfect fit for your tow-behind rock picker project. Having worked with SolidWorks, Inventor, and other CAD software you've specified, I'm proficient in developing robust 3D models and detailed fabrication drawings. My knowledge of materials and my understanding of farm workshop practicalities enables me to deliver designs featuring low-maintenance bearings, chains, and wear parts that can be sourced locally without compromising performance or longevity. Additionally, it is important to have an implement that seamlessly integrates with your 100 hp tractor. Utilizing CAT 2 hitch connection type—your tractor specification—I will ensure the overall transport width, hitch type, and estimated operating speed are tailored accordingly. To demonstrate my capabilities in stress analyses which we understand are critical for agricultural equipment like yours, I'll provide a sample render or FEA screenshot. In summary, I believe my experience is second to none when it comes to designing implements for broadacre agricultural fields. With my fluency in English communication and commitment to customer satisfaction, our collaboration on this project will be seamless and result-driven. Let's get your fields rock-free efficiently and comfortably!
$260 AUD in 3 days
6.9
6.9

Hello, my name is Mannu, and as a highly skilled multi-dimensional engineer, I have the breadth of knowledge and experience to deliver the robust and reliable product you're after for your broadacre agricultural fields. My expertise in AutoCAD, SolidWorks, and Product Design will ensure that every aspect of the project is accounted for - from creating a full 3D model that integrates seamlessly with your tractor to fabricating production-ready drawings with detailed part lists.
$266 AUD in 1 day
6.7
6.7

Hi, I can design a tow-behind rock picker with a robust frame, conveyor/screening mechanism, and manufacturing-ready CAD. With 7+ years of experience in SolidWorks and agricultural equipment design, I deliver production-ready models and fabrication drawings. Modern tow-behind rock pickers typically use a conveyor or reel system to separate rocks from soil while being tractor-towed. ✔️ Agricultural equipment CAD design ✔️ 3D assemblies & fabrication drawings ✔️ STEP, PDF & SolidWorks files ✔️ Fast revisions Portfolio: https://www.freelancer.in/u/xabhix I'm available to start immediately. Could you share the required working width, tractor HP, and any reference images or sketches? Best regards, Abhishek
$400 AUD in 7 days
6.5
6.5

Hi, I’m a multidisciplinary engineer focused on design + analysis, delivering production ready CAD and simulation-backed solutions. I work across mechanical and architectural scopes, with clear drawings, practical detailing, and fast communication. Feel free to check my profile for similar projects ,happy to review your scope and suggest the best next steps. G. Zaralı
$500 AUD in 7 days
6.6
6.6

Drawing on my extensive experience in product design, I am confident that I can create a robust and efficient tow-behind rock picker tailored specifically to your needs. Having previously completed design projects for the agricultural industry, I am well-versed in creating machinery to the exact specifications required by farmers. With proficiency in SolidWorks and Inventor, you can expect a highly detailed 3D CAD model and assembly that ensures optimal performance for your tractor’s 100 hp class.
$260 AUD in 1 day
6.6
6.6

As an experienced and adaptable 3D designer, I have a versatile skill set that fits perfectly with your project's requirements. My expertise in 3D CAD and Solidworks aligns well with your need for a full 3D CAD model and associated deliverables, while my certification in BIM design ensures a deep understanding of precision engineering within a digital framework. I am confident about my ability to design and conceptualize farm-implement work, having worked on numerous projects in the past for the agriculture industry. Moreover, my hands-on experience with stress analysis is an added advantage ensuring that the tow-behind rock picker will have structural integrity and durability even under heavy loads.
$251 AUD in 1 day
6.0
6.0

Hello, I have extensive experience designing agricultural machinery and heavy fabricated equipment, including PTO- and hydraulic-driven implements, welded steel assemblies, and field equipment developed for reliable operation in demanding environments. I’ve delivered production-ready CAD assemblies with fabrication drawings, BOMs, standard off-the-shelf components, and structural validation to ensure durability, ease of maintenance, and efficient manufacturing. For your rock picker, I will develop a robust Cat II hitch design sized for a 100 hp tractor, incorporating an efficient stone collection mechanism, ground-following suspension, low-maintenance drive components, and a reliable unloading system while keeping transport dimensions and serviceability practical for broadacre farming. The deliverables will include the complete 3D assembly, fabrication drawings with weld details and material specifications, BOM with readily available components, and an operating guide covering setup, hydraulic requirements, transport width, and maintenance intervals. Could you confirm your preferred collection system, such as a reel, rotating tine drum, or conveyor, if you have a specific concept in mind? Also, what operating width and target hopper capacity are you aiming for so the design matches your field productivity requirements? Regards
$250 AUD in 3 days
5.7
5.7

Hey, You are looking for 100 hp Tow-Behind Rock Picker. "Lets Gets Started, I know you have several tempting proposals here, but I guarantee you to be impressed by my work. I have various skills in design, Illustration, Photoshop, Graphic Design, Logo Design and Illustrator. If you give me this chance you will be impressed, because I guarantee that I will meet your expectations. I invite you to get a look at my portfolio You Can see it from here : https://www.freelancer.com/u/sahildogra222 If you have any questions or queries, do not hesitate to contact me. I hope to start working with you. With regards! SAHIL
$250 AUD in 1 day
6.0
6.0

As an experienced CAD modeler and product designer, I understand the importance of designing for real-world applications. In order to ensure a successful outcome for your tow-behind rock picker project, my technical capabilities and working experience are perfectly suited. I have worked extensively in agricultural machinery design and have a deep understanding of their functionality and component requirements. With my proficiency in SolidWorks, I will provide you with a 3D CAD model detailing each component and assembly, as well as fabrication drawings with all necessary symbols, call-outs and tolerances for smooth manufacturing process. My designs are always mindful of accessibility and ease of maintenance, which aligns well with your request for bearings, chains, and wear parts that can be easily sourced locally. Moreover, I maintain a client-centric approach which means keeping you in the loop at every stage of the project. This collaborative style ensures that even the smallest details are not overseen, resulting in an impeccable final deliverable. Let's combine my designs with your tractor dimensions to create a robust 100 hp tow-behind rock picker that performs flawlessly on your broadacre farm fields.
$350 AUD in 10 days
5.9
5.9

Hi there, I have experience with agricultural machinery and mechanical equipment design, and I can develop a robust tow-behind rock picker specifically matched to your 100 HP tractor with a Category 2 hitch. I’ll focus on reliable rock collection, soil separation, ground following, durability, and straightforward maintenance using readily available farm-service components. ☑️ Complete SolidWorks 3D assembly and detailed components ☑️ PTO/tractor-hydraulic system sized for a 100 HP tractor ☑️ Adjustable tine/reel and soil-separation system for 3–6 in. rocks ☑️ Ground-following frame and stability analysis for rolling terrain ☑️ Cat 2 hitch, transport width and operating-speed considerations ☑️ Welded fabrication drawings with tolerances and material specifications ☑️ Complete BOM with bearings, chains, sprockets and hydraulic components ☑️ Basic operating, hydraulic-flow and maintenance documentation ☑️ Structural/stress checks on the frame, hitch and critical components I’ll design the machine around practical agricultural fabrication and service requirements, keeping wear components replaceable and minimizing unnecessary complexity. I can also provide relevant agricultural implement design examples and FEA/stress-analysis samples with my proposal. I’m ready to review your tractor dimensions, soil conditions and preferred working width and begin the design. Best Regards.
$500 AUD in 5 days
5.7
5.7

Hi there, We understand you are seeking a robust design for a 100 hp tow-behind rock picker, complete with a 3D CAD model, fabrication drawings, and a bill of materials. Our studio specialises in product development and mechanical design, and we can assist with developing a functional and manufacturable solution for your agricultural needs. Our approach involves working closely to translate your functional expectations, such as the adjustable tine system and ground-following frame, into a comprehensive design. We would typically develop the full 3D CAD model in SolidWorks, from which we can generate detailed fabrication drawings with all necessary annotations, weld symbols, and material call-outs. We can also compile a complete bill of materials for readily available components. We invite you to connect for a brief discussion to confirm the project's scope, timeline, and final pricing. Please feel free to message us before awarding. You can view our profile and past work at https://www.freelancer.in/u/faisal8071. Regards, Ar. Faisal Saif
$750 AUD in 10 days
5.5
5.5

I am here to bring your product to life. I'm a mechanical engineer with 11 years of experience designing industrial product, furniture product, plastic product and machine, automatic system Experience type: 3D, 2D models, Render, Sheet Metals, Machines and Devices, Industrial Products, Plastic Molds, Plastic Parts Software program: Autodesk Inventor, Solidworks, Autocad , NX-Siemens I am always glad to cooperate, I guarantee quick lead-time, information of the project is always confidential . Your project will be developed with speed and high quality, as well as all the jobs already accomplished. Please send me a message
$600 AUD in 7 days
5.8
5.8

Hi, there I have experience designing heavy mechanical assemblies and fabrication-ready equipment for manufacturing. I can develop a robust, Cat II tow-behind rock picker with a PTO/hydraulic drive, ground-following pickup system, durable frame, and low-maintenance components optimized for a 100 HP tractor. You'll receive complete 3D CAD models, fabrication drawings, BOM, and production-ready documentation with standard off-the-shelf components. Please share your preferred transport width and field conditions, and we can get started. Thanks. Regards.
$250 AUD in 3 days
5.1
5.1

Hi, could you confirm the target rock-bin capacity and preferred unloading method for the Cat 2 hitch, 100 hp tractor setup? This project requires a robust tow-behind rock picker capable of collecting 3–6 inch stones across uneven broadacre fields, with reliable soil separation, ground following, low-maintenance components, and safe unloading. My experience in mechanical CAD, agricultural equipment design, 3D assemblies, fabrication detailing, mechanism development, and manufacturing-focused engineering is well suited to developing this machine. I can develop the adjustable tine/reel system, stable frame, PTO or hydraulic drive, wear components, bearings, chains, hydraulic interfaces, and unloading mechanism while considering transport width, operating speed, serviceability, and structural strength. I can provide the complete CAD assembly, fabrication drawings, BOM, and operating guide. My priority is a practical farm-ready design that your 100 hp tractor can operate reliably and a local workshop can fabricate and maintain. I look forward to delivering a durable, efficient, and field-focused solution. Best Wishes
$250 AUD in 4 days
5.5
5.5

The design will begin by defining the pickup mechanism, drivetrain (PTO or hydraulic), and Cat II hitch geometry based on your tractor specifications. Next, I will develop a robust welded frame with a ground-following pickup system, followed by the rock bin and unloading mechanism. The final stage includes fabrication drawings, a complete BOM using standard components, and assembly documentation. My background is in mechanical machine design, welded structures, and manufacturable CAD assemblies with attention to durability, maintenance, and fabrication practicality. Where appropriate, I can also provide basic structural verification to support critical frame components. Deliverables include native CAD files, PDF fabrication drawings, DWG/DXF files, BOM, and operating documentation. The scope is based on the current description, includes up to two revision rounds, and excludes fabrication or field testing. The timeline is preliminary and will be confirmed after reviewing all requirements. One question: do you already have a preferred pickup mechanism (reel, rake, or elevator web), or should it be selected based on your soil conditions and target rock size?
$550 AUD in 7 days
5.0
5.0

Hi, how are you doing? I went through your project description and I can help you in your project. your project requirements perfectly match my expertise. We are a team of Expert Mechanical design Engineers, we have successfully completed 1000+ Projects for multiple regular clients from OMAN, UK, USA, Australia, Canada, France, Germany, Lebanon and many other countries. We are providing our services in following areas: Product Design | 3D CAD Modelling Finite Element Analysis | Computational Fluid Dynamics Thermal analysis | Structural analysis HVAC and Heat load calculation We are proficient in using following software’s: AUTOCAD SOLIDWORKS ABAQUS ANSYS APDL | ANSYS Fluent MATLAB | SIMULINK COMSOL Multiphysics FUSION360 | CATIA We have good command over REPORT WRITING, we can show you many samples of our previous reports. We can discuss further details in the message box.
$500 AUD in 7 days
5.7
5.7

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