With a 31.7 m placing radius, the PB32A-3R-II is the longer-reach option in the TRUEMAX column-climbing placing-boom line. It is the model to specify when one set-up has to cover a larger floor plate or a wider building footprint than a 28 m boom can sweep — its extra reach comes from a longer 14.5 m root section on the same 3-section R-fold boom, while the second and third sections, 360° slewing and compact fold stay the same. Like the rest of the column-climbing family, it is fully hydraulic and climbs the structure itself, rising with the building instead of being craned up between floors.
On site, the PB32A-3R-II stands on a floor frame or inside the core or elevator shaft and jacks itself upward as the tower grows. A separate concrete pump feeds it up a vertical riser; the boom then spreads that concrete across the deck, walls and columns — it is the distribution end of the system, not the pump. It draws from a 380V/50Hz supply through an 11 kW motor and carries no engine of its own. Built and tested at the TRUEMAX works in Haining and certified to ISO 9001:2015 and CE, it belongs to a placing-boom line that TRUEMAX exports to high-rise and bridge sites in over 120 countries.
1. 31.7 m reach for wider coverage — A longer first arm extends the placing radius to 31.7 m, so the boom sweeps a larger area from each position and is repositioned less often on big floor plates.
2. Self-climbing with the structure — Mounted on a floor or shaft frame, it lifts itself up its own height as the building rises, removing the per-floor crane lift a fixed boom would need.
3. Full 360° gear slewing, cushioned — Gear drive turns the boom through a complete circle, and a slewing cushion valve takes the shock out of starting and stopping for controlled placing.
4. Fully hydraulic 3-section R-fold boom — The three R-fold sections articulate to reach over and around obstructions, then fold tight for climbing and shipping.
5. Light, balance-arm-free design — No counterweight arm means freer rotation in a tight core, and the low overall and lifting-unit weight (4,150 kg per piece) keep floor loading and crane demand modest.
6. One integrated base unit — Pump station and electric cabinet share the lower support, so installation is quicker and there are fewer connection points to fail.
7. Operator's choice of control — Run it on the TRUEMAX electric-proportional remote or on switch-type radio and cable remotes, wired with Omron / Schneider components.
8. Configurable, durable hardware — Imported hydraulic hose and push-in couplers throughout; specify columns in 4 m, 5 m, 6 m or 10 m lengths and a floor or shaft climbing frame to match the structure.
