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Big Power, Small Package

DynaMc® 412

200mm - 315mm (4" - 12")

The DynaMc 412 machine combines the robust, patented features of standard McElroy machines into smaller units for use in tight working environments.The DynaMc® 412 EP (electric pump) uses a common DynaMc EP Hydraulic Power Unit (HPU) to power a light, but rugged 2- or 4-Jaw fusion carriage.

When space is limited, an easy-lift cradle can be removed to make the machine even smaller. A strong electric facer can be loaded from either side of the carriage for more flexibility in tight confines.

Whether it is one fusion or 100, the DynaMc 412 EP provides the rugged reliability you expect from a McElroy.



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  DynaMc® EP
4-Jaw 263 lbs (120 Kg)
2-Jaw 170 lbs (77 Kg)
Facer 54 lbs (24.5 Kg)
Heater 24 lbs (10.9 Kg)
HPU (Hydraulic Power Unit) 115 lbs (52.1 Kg)

Print Specifications


  DynaMc® EP
Maximum Gauge Pressure 400 PSI (27.58 BAR)

Print Specifications

  DynaMc® Electric Power
Frame Welded aluminum construction

Print Specifications

  DynaMc® EP
Heater Power 1750 Watt
Facer Power 1.6 HP, 10 Amp
HPU (Hydraulic Power Unit) 2.2 HP, 14 Amp
Input Voltage Requirements 120V, 60Hz, 1 Ph

Print Specifications

  DynaMc® EP
  2-Jaw 4-Jaw Shipping Container HPU
Length 27" (686 mm) 34" (864 mm) 48" (1219 mm) 24.5" (622 mm)
Width 27" (686 mm) 27" (686 mm) 40" (1016 mm) 11" (279 mm)
Height 24" (610 mm) 24" (610 mm) 30" (762 mm) 21.5" (546 mm)

Print Specifications

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Featured Article

Selecting the Right Machine

The fusing of thermoplastic pipe results in a leak-free and corrosive-resistant system that is becoming the preferred choice for replacing conventional piping systems that are failing across the country.

Read Full Article View More Articles


Featured Replacement

Parts & Accessories

Click on a part number for ordering information.

Hydraulic Power Unit (HPU)

A hydraulic accumulator maintains fusion pressure and reduces power consumption.


4.63" Facer Blade Set

Includes 6 blades, screws and wrench. Must be repositioned for different pipe sizes.

T1208603 - Standard blades
T1208603C - Extended-life blades
T1208603T - Carbide blades

6.13" Facer Blade Set

Includes 6 blades, screws and wrench. Spans entire facer range without repositioning.

T1208610 - Standard blades
T1208610C - Extended-life blades

Heater Plate Kit

Set of two plates with anti-stick coating required for butt fusion. Kit includes attaching screws and wrench.


Butt Fusion & Mitered Insert Sets

Surface hardened for longer life and are serrated for maximum grip.

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Spare Heater

Microprocessor-controlled with dial thermometer to monitor temperature.


Low Force Conversion Kit

Convert 1500 PSI machines to 600 PSI machines.


Facer Stand

Provides a convenient place to protect and store your facer out of the dirt and mud.


Pipe Support Stand

Adjustable pipe stand to properly support, position and align pipe to be fused.

AT5066701 - Manual adjustment
AT5066702 - Hydraulic (no pump)
AT5066703 - Hydraulic & pump kit

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Low Profile Rollers

Reduces the drag on 4" to 18" pipe and protects the pipe from damage. Case includes 40 complete roller assemblies.


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A pipe-handling system that consists of a series of adjustable racks to store and help install the pipe on the job site.

1875502 - PolyHorse with PowerAssist
1875501 - Standard PolyHorse

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DataLogger® 6

Record and document fusion process parameters.

DL18001 - English, Spanish

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Stub End Holder

Self-centering stub end holder to hold stub end for butt fusion.


25' Hydraulic Extension Hoses

Set of four 25' hydraulic extension hoses.


25' Heater Extension Cord

Heater extension cord.


Pyrometer Kit

Accurately check surface temperatures of heater.