KIGL-DA-50 acetylene gas plant — the workhorse of the range

The KIGL-DA-50 is the middle plant in our acetylene range — nominally 50 Nm³/h — and it is the size most of our customers actually run. Enough capacity for continuous fabrication work and for filling cylinders for your own use, without the civil works and staffing of the largest plant.

Most plant pages stop at a capacity figure. Here is something more useful.

The DA-50 configuration is built around an Ingersoll Rand 15 T2 — a two-stage reciprocating acetylene compressor. We hold its clearances, torque settings and maintenance intervals, because we run these machines in our own filling works as well as supplying them.

That has a practical consequence worth stating plainly, because it is the most common expensive mistake on this plant:

If it is knocking, it is the piston head, the connecting rod, or the gudgeon pin bush — in roughly that order. It is very rarely the crankshaft. Crankshaft is where people jump first, and it is where an unnecessary strip-down and a long outage begins.

Stop the machine and call us before you open it up.

Generation pressure: 0.2–0.92 kg/cm²g, ceiling 1.05 kg/cm²g.

Acetylene decomposes explosively under pressure with no oxidant present at all. That is why an acetylene generator runs at a fraction of a bar while every other gas plant on your site runs at tens. The band is not caution; it is the envelope the machine is designed to hold, and every interlock and relief exists to keep it there.

Purge with nitrogen. Never air. Air puts oxygen into a vessel about to contain acetylene, and acetylene-air mixtures are flammable across an exceptionally wide range. It is the first thing we teach an operator and the last thing we let them forget.

The generation chemistry and the operating envelope are identical across all three. What changes is throughput, the size of the civil works, and how much redundancy you get. Do not choose on capacity alone — choose on whether you can run out.

An acetylene plant is a licensed installation, not a machine. Compliant building, separation distances, PESO licence, trained operators, a maintenance regime, and a carbide supply relationship. On a plant this size the generator is often not the largest line in the project.

We commission it, we train your operators, and we maintain plants we did not build — including plants of other makes and plants that have been standing. See the operation and maintenance guide for what running one actually involves.