Pit Bull® 412

4" IPS - 12" DIPS (110mm - 340mm)

Rugged and reliable, the Pit Bull® 412 was built for jobsites where wheeled or tracked vehicles are not needed. Ready for the ditch or any other tight space, the Pit Bull 412 is as tough as they come. The machine is compact while retaining many of McElroy's popular features including the patented Centerline Guidance System for equal distribution of force around the joint.

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Click on a part number below for pricing and order information.

A Hydraulic Clamping kit is available for all Pit Bull® 412 models. Add HC to the end of the part number or select the Hydraulic Clamping option while customizing your machine package.
  • Pit Bull® 412

    Fusion carriage, heater, facer, insulated heater stand and 12" IPS butt fusion inserts. Hydraulic Power Unit (HPU) sold separately.

    Description Part Number
    Please select a model to customize.
    High Force, 240V AT1213002
    Please select a model to customize.
    Medium Force, 240V AT1213001
    Please select a model to customize.
    Low Force, 240V AT1213003
    Starting at



Click on a photo or video below for download options.


California Prop 65 info

AT1213001 Medium Force, 240V
AT1213002 High Force, 240V
AT1213003 Low Force, 240V
Carriage 3-Jaw - 282 lbs. (127.9 Kg) | 4-Jaw - 442 lbs. (200.5 Kg) |
Heater 24 lbs. (10.9 Kg)
Facer 62 lbs. (28.1 Kg)
Minimum Power Requirements 3000 kW
Heater 3,000 Watts, 50 / 60 Hz, 1 Ph
Facer Hydraulic
Heater Plug type DIN 49441
Machine Dimensions
Length 44" (1,117.6mm)
Width 38" (965.2mm)
Height 28" (711.2mm)
Carriage Dimensions
Length 3-Jaw - 29" (736.6mm) | 4-Jaw - 44" (1,117.6mm) |
Width 30" (762mm)
Height 27" (685.8mm)

Print Specifications

T1810901 220-240V, 60Hz, 1Ph HPU
T1810902 220-240V, 50/60Hz, 3Ph HPU
Machine Dimensions
Length 48" (1,219.2mm)
Width 32.5" (825.5mm)
Height 41" (1,041.4mm)
Weight 390 lbs. (176.9 Kg)
System Pressure 1,500 PSI (103.4 BAR)
Fusion Pressure 1,500 PSI (103.4 BAR)
Hydraulic Reservoir Capacity 10 Gallons (37.9 Liters)
Pump Flow Rate 50Hz 5 GPM (18.9 LPM)
Pump Flow Rate 60Hz 6.1 GPM (23.1 LPM)
Filtration 10 micron absolute
EP1500P (220V - 240V) Output Power 5 HP, 3 Ph, 13.4 Amps, 8.2 kVA
EP1500P (240V) Output Power 5 HP, 1 Ph, 21.5 Amps, 7.9 kVA
EP1500P (240V) Plug type 50A, 2 Pole, 3 Wire Locking
EP1500P (220V - 240V) Plug type NEMA L15-20P
Mobility Type High-flotation inflatable tires
Transportation Two-wheel cart

Print Specifications

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  • Pit Bull<sup>®</sup> 412 Product Manual
    Pit Bull® 412

    Pit Bull® 412 Product Manual

  • Pit Bull 412 Standard Spec Sheet
    Pit Bull® 412

    Pit Bull® 412 Spec Sheet

  • EP1500P Spec Sheet

    EP1500P Spec Sheet

Featured Replacement

Parts & Accessories

Click on a part number for ordering information.


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


Heaters have a microprocessor control and a dial thermometer to monitor temperature.

1284501 220-240V, 50/60Hz, 1Ph


HPU, hydraulic extension hoses, and operator's manual.

T1810901 220-240V, 60Hz, 1Ph HPU
T1810902 220-240V, 50/60Hz, 3Ph HPU

Low Profile Rollers Case

For 4" IPS - 18" IPS(100mm - 450mm) Pipe.

A1867501 Case (includes 40 complete rollers)

6" IPS Polyvalve Conversion Kit

Converts a standard 6" Hot Tapping Tool to a 6" Polyvalve Hot Tap Tool. Kit includes 3" OD cutter.

220305 6" IPS Polyvalve Kit

25' Extension Cord

For use with non-automated machines when fusing in-ditch.

1219002 240V, 1Ph, 15A Cord

DataLogger® 7

Tablet, transducer, machine mount, stylus, micro SD card, carrying case and Quick Start Guide.

DLP0857716 DataLogger 7 - English, Spanish, and Russian

External Bead Remover

Trim the bead created during the fusion process.

1221101 For 1 ¼" to 6" IPS pipe
1221601 Extra blades for 1221101
1221603 Extra blades for 1810102
1810102 For 4" IPS to 18" OD pipe

Heat Shield

For fusing two materials with different melt rates. Shields the faster melt rate materials from over melting.

203007 Heat Shield

Hot Tap Tool

Branch saddle tapping tool for high density (PE100) polyethylene pipe.

220002 2"
220003 2"
220106 3"
220107 3"
220206 4"
220207 4"
220302 6"
220303 6"
247201 63mm
247301 90mm
247302 110mm
247401 125mm
247402 160mm

Hydraulic Clamping Retrofit Kit

Increase productivity by eliminating manual cranking of knobs.

A1262301 Hydraulic Clamping Retrofit Kit

Hydraulic Extension Hoses

Required for in-ditch fusion.

1219105 25ft Extension Hose Set (4 hoses)

Pipe Support Stand

Height is adjustable to properly support, position and align pipe to be fused.

T5070901 4" - 20" Pipe Stand with Manual Chain Height Adjustment
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3 trusses, 3 stanchions, 6 screw jacks, 1 pivot roller support, 2 stationary rollers and wrench.

1875501 Standard PolyHorse
1875502 PolyHorse with PowerAssist
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Pyrometer Kit

Pryometer kit for accurately checking surface temperatures of heater.

A218804 Measures surface temperature of heater

Self-Centering Stub End Holder

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

1270101 Stub End Holder

Spare 4.63" Facer Blade Set

Spare facer blades.

T1208603 Facer Blade Set (6 Blades)
T1208603C Extended Life Facer Blade Set (6 Blades)
T1208603T Carbide Facer Blade Set (6 Blades) for abrasive materials

Spare 6.13" Facer Blade Set

Spare facer blades.

T1208610 Facer Blade Set (6 Blades)
T1208610C Extended Life Facer Blade Set (6 Blades)

Spare Heater Plate Kit

Heater plates have an anti-stick coating and are required for butt fusion.

A1242108 6" - 12" Heater Plate
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