Atlas Copco 1616738791 Spare Element AQ15-30VSD

Описание

When an AQ oil-free screw compressor is built for variable speed duty, the element at its core is what delivers the machine’s output across the speed band. The 1616738791 is the spare element Atlas Copco records for that duty in the AQ15-30VSD range, and the parts system lists it under the S3L Oil free screw, Element rate group. It arrives as a complete compression stage, cast and assembled at the factory, and enters the machine as one unit.

The record behind the 1616738791 also carries a numbering history that matters at the ordering desk. The number 1616738781 has been superseded, and orders placed under it are directed to the 1616738791, while 1616738780 and 1616738790 name the same element in their own records. Reading the number on an old tag correctly is therefore the first step of a clean order.

Product overview

An air end is the component that turns drive power into compressed air, and in a screw machine that work happens between two meshing rotors. The element sets the displacement, the pressure capability and, together with the drive, the efficiency the machine is rated for. On the AQ15-30VSD machines the 1616738791 holds that role as the oil-free stage of the package.

The designation SPARE ELEMENT AQ15-30VSD is recorded exactly as the parts system prints it. Spare marks the ordering channel: production elements are fitted when new machines are assembled, and this is the number through which a replacement element is ordered afterwards. Both paths point at the same stage design, which is why the parts system keeps the designation short and the identity exact.

Technical specifications

The fields below are carried exactly as the Atlas Copco parts system records them for the 1616738791. They travel with the part from the order desk into the maintenance file, and they are the values to quote when the machine record is checked.

Part identification

Dimensions and weight

Этот 1616738791 measures 46 cm in length, 23 cm in width and 19 cm in height, with a recorded weight of 41 kg. That is a compact envelope for an air end of this output class, but the mass is still cast metal, so the move from pallet to machine bed is planned rather than improvised.

Part numbers and ordering identity

Three numbers are tied to this element, and one former number has been retired. The parts system records 1616738780, 1616738790 and 1616738791 as names for the same spare element, so a parts list, a quotation or an old delivery note can carry any of the three. Where two of them appear side by side in a document, they describe one stage, not two.

The number 1616738781 sits on the supersession chain. Orders that were raised under 1616738781 are directed to the 1616738791, and the parts system keeps that link active so old enquiries resolve to the current identity. A tag printed with the retired number therefore still leads to the right element once the chain is read.

For ordering, the practical habit is simple. Quote the number on the tag or in the parts list, add the compressor model and serial, and let the confirmation step resolve supersessions and equal numbers against the machine record before the 1616738791 is booked.

Compression duty on a VSD machine

The oil-free stage

The rate group places the 1616738791 among oil-free screw elements, which run with no oil inside the compression chamber. A proprietary anti-friction coating on the working surfaces keeps the rotor pair running without metal contact, and timing gears hold the two rotors in phase. Sealing comes from clearances and geometry instead of injected oil, so nothing in the lubrication circuit ever meets the air path.

Running across the speed band

On VSD machines the element runs across a speed range instead of one fixed speed, because the drive matches motor speed to the air demand of the plant. The stage therefore has to hold stable compression at partial load as well as at full output, and the checks around it are scheduled against running data rather than a fixed hour count. That is the duty the AQ15-30VSD designation on the 1616738791 refers to.

Fitment and confirmation

Этот 1616738791 is listed for the oil-free AQ machines of the AQ15-30VSD range. That designation covers the variable-speed sizes from AQ 15 VSD up to AQ 30 VSD, and the element serves those machines as their oil-free compression stage.

Fitment for an individual compressor is still read from the parts list of its serial. An element family can serve several builds, and the serial record names the exact stage fitted to each machine, so the 1616738791 is confirmed by model and serial rather than matched by appearance to the removed unit.

Installation and service planning

Handling a 41 kg stage

At 41 kg the 1616738791 can be positioned with standard workshop lifting gear and a clear route from the delivery point to the machine bed. The replacement seats onto the original mounts, and its inlet and discharge connections line up with the pipework the machine already carries.

Installation is scheduled inside a planned stop once the number is confirmed. Aligning the housing to its original position protects the rotor clearance the stage was built with, and the machine is back on its delivery curve once the restart is complete.

Reading the condition of an element

Oil-free elements are renewed on condition rather than at a fixed hour count. Condition is read from trends: specific energy that climbs, discharge pressure that drifts from its set point, new noise or vibration from the stage, and a running temperature that no longer sits where it did. Any of those turns an element exchange into a planned line item instead of an unplanned stop.

Часто задаваемые вопросы

What happened to the number 1616738781?

The number 1616738781 has been superseded, and orders placed under it are directed to the 1616738791. The parts system keeps the link between the two, so an old tag or an old quotation still resolves to the current element.

Why do 1616738780 and 1616738790 also appear for this element?

The parts system records 1616738780, 1616738790 and 1616738791 as names for the same spare element. Whichever of the three a document carries, the stage behind it is the one described on this page.

Which machines is the element listed for?

The element is listed for the oil-free AQ machines of the AQ15-30VSD range, covering the variable-speed sizes from AQ 15 VSD to AQ 30 VSD. For a specific serial, its own parts list names the stage before the order is placed.

How large and heavy is the element?

Этот 1616738791 measures 46 x 23 x 19 cm and weighs 41 kg as a complete stage. The weight is cast metal, so workshop lifting gear is part of the handling plan even at this size.

When is an element exchanged?

Oil-free elements are renewed on condition rather than at a fixed hour count. Rising specific energy, pressure drift, new noise or vibration and a higher running temperature at the stage are the signals a maintenance team trends across service visits.

What does the confirmation step need from my machine?

The model and the serial number from the compressor nameplate, together with the number on the old tag. The parts list for that serial names the stage, and the 1616738791 is confirmed against that record before the order is placed.

Genuine supply from Seadweer

When an element exchange comes up on an AQ15-30VSD machine, the confirmation starts with two lines: the compressor model and the serial number from the nameplate. That record resolves supersessions and equal numbers in one pass, and it names the stage the order should carry. The 1616738791 booked this way arrives as the element the record names.

Seadweer supplies the 1616738791 as the genuine Atlas Copco spare element for the oil-free AQ 15 to AQ 30 VSD machines, with the description, rate group, origin and tariff recorded exactly as the parts system lists them. Ordering through the confirmation step keeps the maintenance file clean: the stage ordered, the stage delivered and the stage recorded all carry one number.

More Parts List

If other Atlas Copco air compressor parts are needed, more models are shown in the table below. Check it, or reach out to us and we will assist you.