Software for the yard running walkie stackers.

A walkie stacker is the unit a yard reaches for when a job needs pallets lifted into racking but a sit-down forklift is too big, too heavy, or too much machine for the floor. The operator walks behind it on a tiller, it runs on battery power with no engine and no cab, and it lives indoors on smooth concrete. That makes it the easy-to-deliver, easy-to-overlook end of the fleet — and that is exactly why it leaks money. The charger has to ship with it, the battery has to come back alive, and the floor has to actually fit the machine. EquipFlow runs walkie stackers the way the yard that built it runs every unit: dispatch, billing, maintenance, and return inspection on one record per stacker, so the small units get the same discipline as the big iron.

Built inside Rental King, right now.

Rental King is a heavy-equipment rental yard in Odessa and Midland, TX. They run walkie stackers, manlifts, forklifts, light towers, generators, compressors, and water trucks on MSA contracts through the Permian Basin — 24/7, oilfield pace. EquipFlow was designed and first deployed inside that yard. Every feature was tested against their live operation before it shipped. The product runs there today.

Walkie stackers are low-dollar-per-day units, which is precisely why a yard loses money on them quietly. A stacker that goes out without its charger is a same-day return trip that eats the whole margin on the rental. A battery that comes back dead and sulfated is a repair bill no one charged for, because nobody photographed it at return. And a control head cracked from a hard knock against racking walks out the gate unnoticed when the unit is dirty and the driver is in a hurry. The hour meter is the spine of both maintenance and billing, so it has to be captured the same way every time, at return, against the rental record. When dispatch, billing, maintenance, and inspection all read from one unit record, the charger ships, the damage gets caught and charged, and the bookkeeper closes the month without reconstructing a fleet of cheap units from memory.

Walkie Stacker specs the rental record tracks.

Every number below is a sourced specification range. The render layer is the only path these values reach the page — they live on the unit record, not in a dispatcher's head.

Rated load capacity

2000-4000lb

Max fork lift height

67-143in

Travel speed (loaded)

3.0-3.4mph

Lift speed (loaded)

13-19fpm

Battery system voltage

24V

Rated load center

24in

How EquipFlow handles walkie stackers on the dispatch board.

A walkie stacker is light freight compared with the rest of the yard, so the dispatch board treats it differently. It rides inside a van or on a small trailer, not on a lowboy, which widens the pool of drivers who can deliver it and makes same-day swaps realistic. The trap is the charger: a battery-electric stacker is useless on arrival without the matching charger and a cord that reaches the customer's outlet, so the board ties the charger to the rental record and the dispatcher confirms it is loaded before the van leaves. Floor fit is the other check — these units are built for smooth, level, indoor concrete, and a dispatcher who knows the customer's site flags a gravel dock or a steep ramp before it becomes a stuck unit and a return trip. Because identical models get double-booked across overlapping retail-reset windows, the board surfaces the conflict at assignment rather than at the gate.

Billing walkie stackers — MSA, standby, and site-level tax.

Walkie stackers rent on simpler terms than a diesel fleet, but the EquipFlow model still does the work. Where a warehouse or facilities account has a master service agreement, the negotiated rate lives on the customer record per equipment class, so a stacker created for that account picks up the right daily, weekly, or monthly rate without the dispatcher pricing it by hand. These units often go out on long-cycle rentals — a retailer covering a remodel, a plant bridging a forklift that is down for parts — so the standby line matters: when a stacker sits charged and idle through a project pause but the customer is keeping it on site, the dispatcher marks standby and the invoice carries it separate from active days. Tax follows the delivery-site record, so a customer with several backrooms in different jurisdictions bills correctly per location. Charger and spare-battery add-ons ride the same invoice, and everything posts to QuickBooks Online on close.

Maintenance on walkie stackers.

Walkie-stacker preventive maintenance runs off the hour meter, not the calendar, because a unit on a busy receiving dock can rack up runtime fast while a backup in the corner of the yard barely turns over. The hour reading posts when the return inspection records it, and the maintenance module advances the service clock from that number, so the next interval lands on real use. The service mix is different from an engine machine: the battery and charger are the heart of the unit, so PM leans on battery condition, electrolyte or cell health, charger function, and the brushes and contactors in the drive and lift circuits. The hydraulic lift cylinder, mast chains, and load and caster wheels round out the checklist. Work orders, parts, and meter history live on the unit record, which is also where a damage charge written up at return turns into a repair ticket.

Walkie Stacker return inspections.

Two inspection rhythms apply to a walkie stacker. The operator runs a daily pre-shift check while the unit is on rent — forks, mast, brakes, the tiller controls, and the horn — and that is the customer's responsibility under the manufacturer manual and the powered-industrial-truck standard. The yard's own control is the return inspection. Before a stacker comes off rent, the driver runs a mobile-web checklist on a phone, with no app to install, captures the hour-meter reading, and attaches required photos that cannot be skipped. The checks that matter on this class are specific: tiller-head and control-button function, the brake that sets when the handle is raised or lowered, fork and backrest condition, load-wheel and caster wear, battery state and the charger and its cord, and any hydraulic weep at the lift cylinder. The inspection ties to the rental record before the unit leaves the customer site, so a dispute over a cracked control head or a bent fork has photos and a timestamp behind it.

Common walkie stacker classes in the field.

The product, the same way it runs for walkie stackers.

The sections below are the EquipFlow modules that matter most when running walkie stackers — each links to the full feature detail.

Operator guides for running walkie stackers.

Field-tested playbooks that go deeper on pricing, dispatch, billing, and maintenance for fleets like this.

• Operator Certification for Rented Equipment →
• Equipment Rental for Industrial Maintenance Shutdowns →
• How to Price Rentals for Long-Term Jobs →
• Material Handling Equipment for Rental Yards →

What you give up running walkie stackers in EquipFlow.

EquipFlow is a web app, so the return inspection needs a signal to load. Most walkie stackers come back to a warehouse or backroom with decent coverage, so this is rarely the problem it is on a remote pad, but a dead spot in a steel building means the driver completes the inspection at the yard on return instead of at the customer site. There is no built-in telematics today, so battery and charge data from a manufacturer's own portal is not pulled automatically — the hour meter and battery state are captured at the return inspection by hand. And the billing logic is built around the daily, weekly, monthly, MSA, and standby model the yard runs on; a customer with an unusual subscription or pooled-fleet arrangement should bring it to the demo to be scoped honestly.