Warehouse bag-handling Robot system Design & BOM

I’m ready to commission a complete pick-and-place robot system for my warehouse operation. This 2 unit system must reliably handle plastic bags (pre-stacked on a wooden 48x40 pallet (Robot unit 1). Clear plastic sheet wrapped) weighing 20-30 kg each bag, travel typical pallet-rack distances, and place into a 20 or 40 ft covered truck trailer (by robot unit2) in a space saving most efficient pattern with full autonomous mode. Only clear plastic wrap will be removed manually at truck loading station, before loading begins. If you can automate, removing of plastic wrapping as well - that will be a plus.
The pallet will be typical wooden 48x40, carrying pre-loaded 8x5 = 40 bags, wrapped in a clear plastic film. The size of bags & weight may vary +-25%. There will be several parking stations to pick-up the pallets from the production side of plant.
The AMR (one example design given in video below) will pick the pallet and drop it at a pre-designated location close to the truck loading bay. There are several truck loading bays.
The truck loading robot will be mobile that can operate both outside & inside the truck trailer. As the trailer gets progressively loaded, this robot will keep moving out of trailer. The quantity & speed of each of 2 types of robots must be selected for optimum timings & efficient use.
The actual configuration will be loaded into AMR memory by our system, once it becomes ready to accept next load. Any PLC, HMI, sensors (from your list) will be supplied by us.

We shall discuss more details in a Q/A session with shortlisted candidates.
I need a seasoned robotics engineer who can turn this concept into a build-ready package—from kinematics and actuator sizing, performance, ultra-modern technology to controls architecture and safety guarding.

AMR for pallets (example only for illustrative purpose) Unit 1
https://www.youtube.com/shorts/O8FShy9-sxo

Truck trailer load mobile robot (this is a example only for illustrative purpose) unit 2
https://www.youtube.com/shorts/tSjSF4PIm50

Open-source Digital Twins (example only for general guidance)
https://github.com/topics/digital-twin

Here’s what I expect to receive:

• 3D mechanical design files (SolidWorks or comparable) covering arm, base, gripper, and guarding
• Motion and load calculations showing the system meets the ≥30kg payload across the required reach
• Control-system layout (Robots, end effectors, servo selection, PLC/ROS integration, sensor list) with I/O mapping
• A fully itemized BOM with manufacturer part numbers, lead times, and indicative costs
• Assembly drawings and exploded views ready for fabrication
• Basic operating cycle 3D simulation & digital twin (some examples given in link) to prove concept and throughput

Acceptance criteria: the design must achieve repeatability suitable for warehouse bag picking, cycle time under pre-designated seconds for a single pick-to-place sweep, and comply with ISO 10218 safety requirements.

If you’ve delivered similar heavy-duty pick-and-place systems and can walk me through trade-offs between SCARA, articulated, or gantry configurations, I’m keen to review your approach and past work samples.
1. Submit your questions with 1st response.
2. Do not use AI/chatbots with any communications with us.
3. The budget given is placeholder only. Submit your best $ & time offer
4. After award, for actual design/development, AI use is encouraged.
4. All the design, development documentation, source codes etc. will be submitted.
5. 1st milestone will be created after an acceptable design is shown online.
6. Last payment will be made after the design works per our specs for 3 months with no issues.
7. Respond if you are serious & hungry for this work.
8. Please save your & our time. If you do not accept any of our terms, do NOT apply.