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, safely & unscathingly handle plastic bags (pre-stacked on a wooden 48x40 pallet (Robot unit 1). Clear plastic sheet wrapped, each bag weighing 20-30 kg, travel typical pallet-rack distances, and place into a 20 or 40 ft covered truck trailer (by unit 2 robot arm effector with optional Drone) 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 of bags begins. If you can automate, removing of plastic wrapping as well - that will be a plus as an option.
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, them coming from the production side of plant (this part is not in our scope).
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 or to platforms, so the next pallet can be deposited at its place from production side. There are several truck loading bays.
The mobile truck loading robot arm (unit 2) will be that can operate inside the truck trailer. Several units of arms will stay parked at a designated area. Once loading into truck initiates, one of the ready, least used mobile arm will move into the truck trailer from the parking space. The Optional Drone will pick the bag, hand over the bag to the arm, inside trailer & then resume next bag handling. When battery is low, it will move/fly to battery charging/refueling station.
As the trailer gets progressively loaded, the loading arm will keep moving out of trailer. The quantity & performance speed of each of 2 types of robots must be selected for optimum timings & efficient use. Leave 2 layers of bags open space at top of the trailer for bag manipulation during loading & unloading at destination.
The actual configuration will be loaded into AMR, Loading arm, Drone memory by our system, once it becomes ready to accept next load. The robot make/models must use open systems like ROS & not be proprietary, Any PLC, HMI, sensors (from your list) will be supplied & programmed 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 (Only arm is needed, 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 free 3D designer. Please identify) covering robots, arm, base, gripper, and guarding
• Motion, timing 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. Prefer to use pre-fab products that can be fused together quickly
• Basic operating cycle 3D simulation & digital twin (some examples given in link) to prove concept and throughput
• Design envisages use of 3 robots of each type in operation simultaneously & 2 spares.
• Design of Drones & drone battery management/refueling is not in this scope. However, you may provide as an option. AMR charging system is in scope.

Acceptance criteria: No damage to the bags during operation. 3 quantity of each unit in use & 2 spares of each. The design must achieve repeatability suitable for pallet, bag picking, cycle time under pre-designated seconds for a single pick-to-place sweep for each segment, and comply with ISO 10218 safety requirements.

If you’ve delivered similar heavy-duty pick-and-place systems and can walk us 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.
5. All the design, development documentation, source codes etc. will be submitted, prior to any payment release.
6. Use of any 3rd party SW w/o access to source code, use of custom HW by you, will need our prior approval.
7. No upfront payment.
8. Your bid details can't be changed at will unless significant scope changes occur with mutual agreement only.
9. 1st milestone will be created after an acceptable design is shown online.
10. Last 35% payment will be made after the design works per our specs for 3 months with no issues.
11. Respond only if you are serious & hungry for this work.
12. Please save your & our time. If you do not accept any of our terms, do NOT apply.