Most pallet ASRS gives you dense storage and stops there — you still bolt on software from another vendor to make it move the right pallet at the right time. RackBot is a rail-based 4-way shuttle that ships with PES already inside.
Rail-based shuttle — X/Y travel plus vertical movement between levels
lbs payload per pallet (RackBot)
Shuttle travel speed on rail
Execution system pre-integrated — storage that sequences orders
Most pallet ASRS vendors solve cube utilization and call it done. The shuttle stores deep, packs tight, and recovers floor space — but it has no idea what your orders need. Sequencing, outbound staging, and the logic that decides which pallet moves next live in a separate system, from a separate vendor, integrated by a third party. The storage works. The execution is somebody else’s problem.
Deep-lane, multi-level storage where conventional racking would burn floor space on aisles.
RackBot stores deep — but on its own, dense storage still has no idea what your orders need.
RackBot is a rail-based, 4-way pallet shuttle for high-density storage — and it comes with PES, Prime’s warehouse execution system, pre-integrated. The same platform that stores the pallet decides when it leaves and in what order.
RackBot travels both directions on rail and moves vertically between levels — deep-lane, multi-level pallet storage that recovers floor space conventional racking wastes on aisles.
The execution layer ships inside the system. PES sequences retrievals against live orders and stages outbound automatically — no separate software contract, no third-party middleware to make storage and orders talk.
Because Prime builds the shuttle and the software, the ASRS doesn’t just hold inventory — it runs outbound. One platform owns storage, retrieval, and sequencing, with channel-partner SIs where deployment calls for them.
The VTU lift, the PTU pallet transfer unit, safety interlocks, pallet-profile scanners — every supporting device is engineered to fit the shuttle and the software, not bolted together from separate vendors. The pieces are designed as one system to maximize throughput and economics.
Ask a pallet ASRS vendor what happens after the pallet is stored, and the answer is usually “that’s your WMS’s job.” RackBot ships with PES — the same warehouse execution system that orchestrates Prime’s entire robot fleet. And it’s not just the software: the VTU lift, the PTU pallet transfer unit, safety interlocks, and pallet-profile scanners are all engineered to fit, not assembled from separate vendors. Retrieval order, outbound staging, and cross-workflow priority are decided inside the system that’s already moving the pallets.
A shuttle, plus a lift, plus controls, plus a WES — sourced from different vendors and integrated into a hodgepodge by a third party.
Shuttle, VTU, PTU, interlocks, scanners, and execution software designed as one system — pre-integrated and accountable for the whole loop.
RackBot pairs with MobilePallet and the PTU, plus a mobile buffer of pallets on the floor that moves to and from pick stations on demand. PES interleaves the two systems’ missions — storage moves and pallet picks scheduled together — so floor space shrinks and throughput climbs. The supporting devices don’t just add up; combined, they do more than the sum of the parts.
PES orchestrates the full storage-and-retrieval loop as one system — not a shuttle running blind underneath someone else’s software.
MobilePallet delivers inbound pallets to the ASRS infeed; PES registers each load against the order book.
RackBot carries the pallet deep into the rack on rail, placing it for density — PES tracks the slot.
High-density, multi-level storage holds pallets close-packed until the order calls for them.
PES decides retrieval order from live demand — not a fixed FIFO an external system imposed.
RackBot pulls the right pallet, traveling X/Y on rail and vertically between levels to reach it.
Pallets arrive at the dock in the order the load plan needs — staging handled automatically.
MobilePallet keeps infeed and pick faces fed; PES throttles across workflows to clear bottlenecks.
Every move — store, retrieve, sequence, stage — runs on the same execution layer. No vendor seams.
Because RackBot stores deep on rail, the rack can run right up to the dock doors. The forklift drops a pallet at the lane mouth, scans it for PES, and turns straight back for the next one — a round trip of feet, not the length of the building. As it pulls away, a RackBot already in the lane comes forward, lifts the pallet, and indexes it to the back of a 26-deep position before the driver returns. The dock-to-rack haul drops from as much as ~150 m round trip to a few feet.
The operator sets a pallet at the lane mouth, scans it for PES, and immediately turns back for the next — no waiting on the rack.
The shuttle comes forward, lifts the dropped pallet, and indexes it to the back of the lane — clearing the spot before the forklift gets back. (Shown at speed.)
The shuttle at the core of Prime’s pallet ASRS. Specs held consistent with the RackBot Arctic deployment on the Cold Storage fleet.
RackBot also runs in -20°F as RackBot Arctic (rail-based, 4,000 lb, 4.5 mph) — the same shuttle, rated for the freezer, on Prime’s Cold Storage fleet.
RackBot rides the lift on its own to change levels — the same multidirectional movement a “6-way” promises, on a rail-based shuttle.
Rail-based, 4,000 lb capacity, deep-lane storage — the shuttle at the core of Prime’s pallet ASRS.
RackBot delivers full vertical movement between levels — the same multidirectional capability, ASRS-grade. You get the travel a “six-way” promises, on a rail-based 4-way shuttle that’s the established industry standard for high-density pallet storage.
Most ASRS deployments stitch a shuttle to a separate software stack. Prime builds both — so the system that stores your pallets is the system that ships them.
Rail-based shuttle — the established high-density ASRS standard
Execution system owning storage, retrieval, and outbound sequencing
Third-party middleware needed to make storage and orders talk
Talk to a Prime engineer about your storage density, throughput, and outbound profile — and see a pallet ASRS that sequences orders instead of just holding pallets.
A 20-minute call where we walk through the deployment, answer technical questions, and assess your storage and throughput requirements.
Full RackBot specifications including shuttle dimensions, rack configuration, electrical requirements, and PES integration protocols.
Talk to a Prime engineer about your specific operation — storage density, order profile, and outbound sequencing needs.
