Frank Brown and Son is an established and well-respected engineering company, specialising in the design and manufacture of ground support equipment for the aerospace and aircraft industry throughout the world.
Founded in 1966 by Frank Brown himself, the company began by doing general sub contract work for Vauxhall from a small unit in Luton.
Now, over 40 years later, the company is run by his son, Clive. After significant growth in the 1980’s Brown’s was moved to a new factory, totalling 10,000m2.
The business had by then become what it is today; a highly skilled designer of aircraft maintenance tooling and equipment.
Brown’s bought their first Haas machine in 1996. The VF-2D vertical machining centre ran every day until 2 years ago, when the team decided to part exchange it for a new VF-2SS Super Speed.
“We certainly got our money’s worth from that original machine,” says machine shop supervisor, Andy Knight.
“It was running well until its last day with us; it was always accurate, we just upgraded to something a bit quicker in the end.”
The machine shop has doubled in the last twenty years and with twenty Haas machines; six lathes and fourteen mills, the majority of our CNC machinery is supplied by Haas.
“Our workload has changed dramatically,” explains Andy. “Not so long ago we were making stock packs of ten a year, now its forty plus. And everything that needs machining goes on a Haas.”
The latest investment is a VF-4SS with through spindle coolant and 5-axis trunnion. “The 5-axis machines are doing some really nice work. They cut our ops down from 6 to 2, which is a massive reduction.
“We’re producing a lot of Boeing 737 and Airbus tooling and it’s really made a difference; it’s knocking the stuffing out of the cycle times, cutting them by a third at least.”
In fact, Brown’s has purchased 4 Haas Super Speed mills in the last 4 years. “The rapids, tool change speed and 12,000 RPM spindle are phenomenal on the new machines,” comments Andy.
“We’re using CAD with long programs which have lots of movement, but they cope with them, no problem. Although,” he adds with a smile, “our oldest Haas is over 20 years old and it’s still mechanically very good. It’s a sound machine.”
When asked what the company’s plans for the future are Andy replies “To keep going and keep buying Haas. Clive has no intention of shopping anywhere else.”
For Example: When a rotary fits with alternative fixturing, it may fit in that particular Haas mill, but will require a sub-plate or alternate T-slot for proper positioning. We have labeled this particular rotary and mill combination with a yellow caution
You can design and build your own sub-plate using the dimensions of your Haas mill and the dimensions of the rotary you'd like to use on that mill. Product dimensions are available for every machine and rotary on this website.
Single-Head Rotary Tables and Indexers are usually mounted to the right side of the table, with the rotary facing the centre of the machine. This is the basic setup we used to determine the fit of your rotary product.
Image shown for mounting example purposes only. Your actual rotary and mill appearance may differ.
Trunnion Tables, T5Cs, and TRTs are usually mounted in the centre (or slightly off-centre) of the mill table. If you are using probing on the mill, be aware of the interference with larger tools, especially during tool changes.
NOTE: Trunnion units present interference issues with the swing of the unit relative to the machine column and spindle head.
Image shown for mounting example purposes only. Your actual rotary and mill appearance may differ.
Multi-Head Rotary Tables and Indexers are usually mounted toward the back of the table, with the indexer heads or platter facing forward. To mount a multi-head rotary in a different orientation, you must use alternative fixturing.
Image shown for mounting example purposes only. Your actual rotary and mill appearance may differ.
Important Information:
4-axis machines cannot use dual-axis rotaries.
Some options may affect mounting (EC-1600 4th-Axis Table, Low-Profile Tables, Table Spacers, Column Risers, etc.
Tool Changers: SMTCs and umbrella tool changers both present interference issues, plan appropriately.