Sumner's reputation in the welding and mechanical-contracting trades was built on pipe stands and fit-up clamps before the material lifts joined the line. This chapter is a quick orientation to the rest of the catalog — useful background for any tech who services pipefitting jobsites where Sumner gear is everywhere.
The original Sumner product line. A heavy steel post with an Acme-thread adjuster and a pipe-supporting head — the workshop equivalent of a third hand. Used in pairs or larger arrays to hold pipe at fixed elevation while it's welded, threaded, or fitted.
2,500 lb capacity, 28" – 49" height range, 1" square tube base, 1-1/2" Acme adjustment thread. V-head for cradling round pipe.
Identical structure to the ST-801, but with a roller head that lets the pipe rotate during welding or threading without re-positioning the stand.
Slightly lighter alternative to the ST-801. 28" base height, 2,000 lb capacity. The shop's "daily driver" pipe stand.
The Fold-A-Jack family is a tripod variant: three folding legs that collapse together for transport, a screw-adjust column, and the same V-head or roller-head choice as the ST-801/802. Common in field-erected piping work where the crew rotates between several locations on a jobsite.
When a welder needs to lay a continuous bead all the way around a horizontal pipe, the pipe must rotate while the torch stays still. Adjust-A-Roll stands have a pair of ball-bearing rollers per head; the pipe rotates freely between them with very low friction.
Service note: Adjust-A-Roll bearings are sealed and intended to be replaced as a roller assembly when they get rough. Don't lubricate — lubricant attracts grit and accelerates wear.
Three-point alignment clamps that pull two pipe ends into precise concentric position before welding. The double-walled steel-plate body is the design's signature — rigid even on large-diameter heavy-wall pipe.
1 in to 2.5 in nominal pipe. The smallest of the family — fits in a tool roll. Single technician operation.
2 in to 6 in nominal. The most-used Ultra Clamp on commercial mechanical-contracting work.
5 in to 12 in nominal pipe. Heavy enough to require two techs to lift and set, but the only way to get a clean root pass on heavy-wall large-diameter pipe.
The Ultra Fit family extends this concept with cage-style alignment clamps for in-line fit-up. Flange Alignment Pins (ST-106) handle bolt-circle alignment on flanged joints. Together they cover most fabrication-shop fit-up needs.
Walking onto a process-piping jobsite, you'll typically see the same Sumner tooling stack: ST-801 jacks holding header pipe, ST-871 Pro Jacks at fit-up stations, Adjust-A-Roll under spool work, Ultra Clamps in the welder's tool roll — and a Series 2118 or Roust-A-Bout in the corner ready to lift heavy fittings into place.
Familiarity with the broader Sumner line saves you time in two ways: you can identify the lift's expected service environment from a glance at what else is in the shop, and you can answer the customer's "hey, while you're here" questions about the rest of their gear.