Rothenberger Standard Expander Head for 12 mm Pipes (11012)

For professionals who demand exact, repeatable pipe expansions without the bulk of a dedicated tool, this Rothenberger expander head slots directly into your ROCAM expander and delivers cold-formed precision on copper, aluminum, and soft steel. The quick-change segmented jaw design means you can swap sizes in seconds, keeping downtime to a minimum on busy installation days.

Highlights

• Hardened steel construction withstands daily jobsite abuse
• Cold expansion creates clean, solderless-ready joints
• Quick-change system for fast head replacement
• Segmented jaws distribute force evenly for uniform results
• Machined finish resists corrosion and wear

In daily use

Slide the head onto the ROCAM expander, lock it in place, and you are ready to expand 12 mm pipe ends with consistent accuracy. The standard profile suits most plumbing and HVAC tasks, from heating circuits to refrigeration lines. Because the jaws are segmented, they open smoothly without deforming the pipe wall, so every connection stays round and true. No heat, no solder, no guesswork—just a reliable mechanical joint every time.

Full specifications

• Brand: Rothenberger
• Model: 11012
• MPN: 11012
• EAN: 4004625110126
• Nominal pipe diameter: 12 mm
• Expander type: Standard
• Compatibility: Rothenberger ROCAM Expander
• Material: High-quality hardened steel
• Application: Copper, aluminum, and soft steel pipes
• Connection type: Quick-change system
• Expansion method: Cold expansion
• Design: Segmented expansion jaws
• Product series: ROCAM
• Replacement part: Yes
• Finish: Machined steel

Final note

Upgrade your ROCAM expander with this precision-machined head and achieve flawless 12 mm expansions on every job.