VTA and LTA Airtorch™ Models

Up to 925°C	Up to 2200°F	Resources
LTA(850°C) VTA (900°C) MTA(925°C) GVTA(850°C) SLTA (750°C)	3kW DPF 10.5kW DPF 15kW DPF 3 Phase 20,30,60kW DPF	Recirculating Airtorch Engineering Conversion Charts Technology and Applications	Convective Heat Treating Typical Applications Die Heating

Airtorch™ System Introduction

VTA
Up to 900°C
Designed for Energy Efficient Fans/Blowers Inlet

Most Popular Model VTA900-10BL

Unit is supplied with several safety features like the over temperature cut-off feature and the low flow cut-off feature

LTA
Up to 850°C
Designed for Compressed Air or Gas Inlet

LTA750-01

LTA Airtorches™ are process air heaters designed for compressed air/gas input. LTA models offer temperatures up to 850°C.

VTA Airtorches™ are process air heaters designed for or supplied with by a fan or blower. VTAs offer temperatures up to 900°C. Fans are employed when the drop in pressure of the system is no greater than approximately 50 in. w.c. (50 in. w.c./inches of H20 is approximately 1.8psi.) This condition remains true even when the fan can output large CFM values. Blowers are considered in circumstances where larger pressure drops are present.

VTAs are highly energy efficient, allowing for less energy use and higher cost savings. VTA models are fully compatible with electronic control panels, allowing for accurate control of flow rates and temperatures for your process. Suggested uses for these models include integration into existing systems for cable conveyors, drying, process heating, coatings, production line heat treating and a number of other specific process applications.

VTA Models

Because of their versatility, MHI's Airtorches™ may be used in several applications. Because each application is unique, please contact us to discuss which product best fits your needs. VTAs offer full power transfer up to 900°C.

Model

Power

Voltage (220V includes 208V)

Max Temp

Max CFM @ Max Temp

Diameter

Height

Air Supply

Inlet Integrated with Fan

Inlet Accepts Blower

Exit

Available

AIR CONNECTION

VTA750-4GS

BuyMHI

4kW

220/230/240

Call

4.0"
(100 mm)

27.5"
(698.5 mm)

Fan model: MK4XL

Fan/Blower

2" NPT

Yes

VTA900-4BL

4kW

220/230/240

900°C

Call

Blower

2" NPT

Yes

VTA900-10BL

10kW

220/230/240

900°C

Call

7.0"
(177.8 mm)

27.5"
(698.5 mm)

Call

Blower

call

Yes

3-Phase VTA's with fans

60-300kW

240/440/480

900°C

Call

** : FANCS: Fan speed controller and temperature indicator

All Models listed above, unless noted otherwise are single phase systems.

VTAs include an integrated Type "K" thermocouple.

Most units are compatible with an optional control panel. Contact Us Online or Call Us at 513-772-0404.

VTA-BL models have integrated air/gas controls.

3-Phase VTAs require TRIPAN Control Panel.

Dimensions are subject to change and exclude flow controls.

VTA has low flow cut-off with extendable user interface. VTA also has full control features if required, please discuss with an MHI Representative.

Fan control is available with the FANCS, which also includes temperature controller.

LTA Models

LTA Models allow for easy idependent control of power and flow-rate. LTA Airtorches™ are to be used with compressed air and power controller.

Model

Power

Voltage

Max Temp

Max CFM @ Max Temp, 60% Power*

Control Panel
(Recommended)

Heat Tube Diameter

System Height

Air/Gas Supply

Inlet

Exit

LTA750-01 (v2)

1kW

115/120, Single Phase

850°C

1.4 CFM

BPAN

2.1"
(53 mm)

15.25" (387 mm)

Compressed Air

1/4" NPT

LTA750-02

2kW

208/220/230/240, Single Phase
(115/120 is Special Order)

850°C

2.8 CFM

BPAN

3.3"
(86 mm)

14.75"
(374mm)

Compressed Air

1/4" NPT

1/2" NPT

LTA750-04

4kW

220/230/240, Single Phase

850°C

5.6 CFM

BPAN

4.0"
(100 mm)

18.5"
(470 mm)

Compressed Air

1/2" NPT

2" NPT

60kW and higher available see MVTA, call MHI at 513-772-0404 for more information.

LTA's are highly energy efficient, allowing for less energy use and higher cost savings. LTA models are fully compatible with electronic control panels, allowing for accurate control of flow rates and temperatures for your process. Suggested uses for these models include integration into existing systems for cable conveyors, drying, process heating, coatings, production line heat treating and a number of other specific process applications.

*At full power the minimum flow required is higher. This is also minimum airflow required when fully energized to rated kW.

All LTA models feature an optional Temperature Indicator module.

All LTA models feature an integrated Type K thermocouple.

Note that dimensions are to be read within a standard tolerance.

Compressed Air/Gas Based (LTA) Compared to Blower Based (VTA)

High Pressure Models (GTA)

VTA and LTA Photos

LTA and VTA Photos
4kW VTA-4GS Integral fan Stainless steel casing	Flow-control Module - Optional with BL Models	1kW VTA-1GC Integral fan
Minimum Flow detection and cut-off module supplied standard with VTA900-10BL	1kW LTA Stainless Steel Casing	2kW LTA Knife-edge Nozzle
FANCS Units & Adaptors (required with fan models)
FANCS Control Unit	FANCS Control Unit - Front	Outlet Adaptor

VTA Photos
VTA900-10BL in Continuous Testing	VTA900-10BL in Use	Extruder

LTA Accessories

LTA Airtorch™ Heater Accessories
	NPT Nozzle with fitting for pipe extension
	FS750-A - Adjustable flow rate detection valve and switch
	FS750 - Flow rate detection valve and switch
	FLM750 - Flowmeter 2-23 SCFM (click for larger images)
	FTB750-6 - 6' Air/gas supply tubing
	Knife Nozzle
	MTAR - Moisture trap ensures dry air to Airtorch^TM

750 Redna Terrace Cincinnati, Ohio 45215 USA
Phone: 513-772-0404 Fax: 513-672-3333
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