Software for the yard running air compressors.

A towable air compressor is the unit a rental yard sends out when a crew needs air at the work face and there is no plant line to tap. It tows behind a pickup, drops at the job, and runs jackhammers, sandblast pots, pneumatic pumps, and pipeline purge work all day. That portability is exactly why compressors are hard to run as a fleet: the same unit moves between customers and sites without a lowboy, the hour meter climbs fast on a blasting job, and the duty cycle is brutal on cooler cores, the air end, and the oil separator. Half the trouble is the air package — the hose, couplers, and filtration that have to go out with the unit. EquipFlow handles compressors the way the yard that built it handles them: dispatch, billing, maintenance, and return inspection on one record per unit.

Built inside Rental King, right now.

Rental King is a heavy-equipment rental yard in Odessa and Midland, TX. They run air compressors, 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.

Compressors are high-utilization, high-standby units, and that mix is where money leaks on a rental yard. A unit staged for a pressure test earns nothing extra if the standby days never reach the invoice, and it loses real money if a return goes out the gate without the air-end damage or the short fuel tank caught and charged. The hour meter is the spine of both maintenance and billing, so it has to be captured the same way every time — at return, on the inspection, against the rental record. When dispatch, billing, maintenance, and inspection all read from one unit record, the dispatcher quotes the right rate, the mechanic services the air end against real run time before it self-destructs, and the bookkeeper closes the month without rebuilding it from memory. That single-record discipline is what keeps a high-churn compressor fleet from running on guesswork.

Air Compressor 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.

Free air delivery

185-425cfm

Rated working pressure

100-150psi

Diesel engine power

49-135hp

Fuel tank capacity

20-60gal

Working weight (wet, with running gear)

2105-4776lb

Sound pressure level at 23 ft

76dB(A)

How EquipFlow handles air compressors on the dispatch board.

A towable air compressor is dispatched as a wheeled unit, so the board treats it the way it treats a generator or light tower rather than a fixed yard asset — it tows behind a pickup, gets dropped at the work face, and moves between sites without a lowboy. A dispatcher sees which units are on location, which are loaded out, and which are due back on the same responsive screen at any hour. The trap with compressors is the air package: a unit dispatched without the hose, the right couplers, the aftercooler or filtration the customer expected, or a manifold for a multi-tool crew is a return trip. The dispatcher confirms the air accessories on the rental record before the truck leaves. Because the same free-air class gets double-booked easily across overlapping blast and purge windows, the board surfaces the conflict at the point of assignment, not at the gate.

Billing air compressors — MSA, standby, and site-level tax.

Most oilfield compressor demand is MSA-contracted, so the rate override lives on the customer record per equipment class, not in a sheet the dispatcher keeps in their head. A compressor rental created for that account picks up the negotiated rate automatically. Compressors are heavy standby earners — a unit staged for a pressure test or a coating window often sits ready but idle for days — so standby is billed at a rate separate from active hours; the dispatcher marks standby and the invoice carries both lines without a month-end rebuild. Fuel handling rides the same invoice, whether the unit goes out full and comes back full or the yard bills fuel used. Delivery, pickup, hose, and accessory charges sit on that invoice too. Tax jurisdiction is set on the delivery-site record, so a unit that worked across more than one county still gets the right rate per site. Invoices post to QuickBooks Online on close.

Maintenance on air compressors.

Compressor PM is hour-meter driven, not calendar driven, because a unit on a blasting job can run a full shift every day while a seasonal spare sits for months. The hour meter posts when the return inspection records it, and the maintenance module advances the PM clock from that reading so the next service lands on real run time. The air end is what a compressor lives and dies by, so PM leans hard on compressor oil and the oil separator, the air and oil filters, and the cooler cores alongside the diesel engine service. A unit run low on compressor oil or with a blinded separator carries air-end damage that dwarfs any engine repair. Work orders, parts, and meter history live on the unit record, which is also where a damage charge written up on a return inspection becomes a repair ticket.

Air Compressor return inspections.

Two inspection rhythms apply. The operator-facing walkaround is a daily habit while the unit is on rent — oil and coolant level, hose and coupler condition, drain the receiver — and that is the customer's responsibility in the field. The yard's own control is the return inspection. Before a compressor comes off rent, the driver runs a mobile-web checklist on a phone, no app install, captures the hour-meter reading, and attaches required photos that cannot be skipped. Compressor-specific checks matter here: the air-end for oil carryover and overheating signs, the cooler cores for packed dirt, the regulator and service-air valves, hose and whip-check condition, the running gear, lunette, and safety chains, and whether the fuel tank came back the way it left. The inspection ties to the rental record before the truck leaves the customer site, so a dispute over damage or fuel has photos and a timestamp behind it.

Common air compressor classes in the field.

The product, the same way it runs for air compressors.

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

Operator guides for running air compressors.

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

• Daily, Weekly, and Monthly Rental Rate Structure →
• Fuel and Environmental Charges on Rentals →
• How to Forecast Equipment Demand →
• How to Manage Parts Inventory for Repairs →

What you give up running air compressors in EquipFlow.

EquipFlow is a web app, so the return inspection needs a signal to load. On a remote lease with no coverage, the driver cannot finish the mobile inspection at the customer site; most yards run it at the yard on return, which means the photos and the hour reading land later than ideal. There is no built-in telematics integration today, so engine hours and fault codes from a manufacturer's own portal are not pulled automatically — the hour meter is captured at return instead. Fuel reconciliation is a billing line and an inspection note, not a fuel-sensor feed. And the rate logic is built around the MSA-and-standby model the oilfield runs on; a yard with an unusual billing structure should bring it to the demo to be scoped honestly.