Tapping Machines
MZ4-2 Sealed Drilling & Tapping Machine
Live hot-tap drilling and threading machine for cast-iron and ductile-iron mains. Tapping range ø15–ø50 mm.
Inquire NowSpecifications
| Model | Size / specification | Notes |
|---|---|---|
| MZ4-2 | DN15, DN20, DN25, DN40, DN50 | Sealed drilling and thread tapping machine for live branch/service connections. |
Frequently Asked Questions
Can the MZ4-2 Sealed Drilling & Tapping Machine tap pressurized pipelines without stopping flow?
Yes — this is a hot-tapping (pressurized drilling) machine. It mounts onto a saddle or split-tee fitting and drills a branch opening while the main line remains in service. Pipeline owners avoid supply interruption, flushing, and shutdown costs.
What pipe diameter range does the MZ4-2 Sealed Drilling & Tapping Machine support?
The MZ4-2 Sealed Drilling & Tapping Machine covers DN15 to DN50, with 1 model configurations to match specific main-line and branch sizes. It is suited to ductile iron.
What power supply is required to operate the machine?
Models in this series are available in 380V three-phase and 220V single-phase versions. Variable-speed configurations (model suffix "C") are offered for operators needing fine feed-rate control in harder pipe materials.
Which pipe materials can this machine tap?
Engineered for ductile iron. Drill bits and hole saws are selected per pipe wall material and thickness; PipeKnot provides a selection table for matching consumables to the target pipe.
What is the lead time and how is it shipped?
Standard lead time is 15 working days ex-factory, shipping FOB Shanghai. Sea, air, and combined transport are arranged through PipeKnot to over 40 countries. Volume orders and project tenders receive priority scheduling.
Is installation guidance and technical support included?
PipeKnot provides English-language installation drawings, torque specifications, and remote technical support. On-site commissioning support can be arranged for qualifying projects in partnership with Anhui Tongfa field engineers.
