Before ordering a portable compressor for a cramped bench or an existing carry case, request separate measurements for the machine, the space needed while it operates and the packed configuration. Catalogue dimensions can rule out a case that is too small. For a bench, have the supplier and a qualified fill provider evaluate the complete setup with the leads and accessories it needs.
Identify what each dimension measures
The TRIMIX HEAP-1 listing gives product dimensions of 14.2 × 24 × 25.5 cm. It also describes a top handle and an integrated cable spool. The TRIMIX CS4 listing gives a size of 32 × 22 × 40 cm. Ask the seller to identify the order of the axes and what each measurement includes. Ask whether those dimensions account for fixed handles, feet, protruding fittings and any components attached to the version being quoted.
| Measurement | How you use it |
|---|---|
| Machine as supplied | Compare the outermost fixed dimensions with the case opening and bench surface. |
| Required operating space | Ask for manufacturer-documented access and ventilation space, including connections, controls and service access. Confirm the bench can support the setup. |
| Packed configuration | Compare the internal case dimensions and space needed for the exact leads, hoses and accessories you will carry. |
Show the provider the real location
Supply a photo and measurements of the proposed bench. Ask the seller for the installation and operating instructions for the exact machine. Have a qualified provider assess ventilation, intake location and how the site will maintain suitable breathing air. Divers Alert Network’s contamination guidance explains how the surroundings and intake location affect that assessment. A small case is a transport choice. The approved operating location needs its own review.
If the unit is to be moved between locations, ask what should travel in the case and what should travel separately. Request one measured case layout for the configuration on the quote. Use the HEAP-1 inquiry to prepare a request with your bench and case dimensions. Ask for the required clearances in writing before choosing equipment to fit those spaces.
Evergreen buyer guide verified November 13, 2026. Sources: TRIMIX HEAP-1 electric compressor product listing (2026-10-30); TRIMIX CS4 electric compressor product listing (2026-10-21); DAN Preventing Breathing-Gas Contamination (2014-05-01).
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