1. Catalogs
  2. ARO
  3. Series M machines
video corpo

Series M machines

Series M machines
1 / 16 PagesView full catalog

Series M machines

Product catalog summary
General Overview
ARO is a leader in resistance welding, offering the M series machines for spot and projection welding. These machines feature a single frame design with configurations including pneumatic cylinders, transformers, and welding cabinet controllers (WCC). Standard equipment includes an electric pedal, air circuit components, a 740 daN cylinder, and a 400 V/50 Hz power supply. Optional features include different frame heights and pneumatic controls.
Specifications
The machines offer transformer power options of 30 or 50 kVA and a standard voltage of 400 V/50 Hz. They provide a cylinder clamping force of 740 daN at 6 bars, with single or double-stroke cylinder options. The machines are water-cooled and allow welding current adjustments through constant phase shift or adaptive methods. Options include support stands, column-mounted electrode holders, and various pressure adjustment programs.
Machine Types
  • MA Type: Features vertical pneumatic descent with effective lengths of 350 or 550 mm, offering various electrode holder positions and pressure adjustment options.
  • MC Type: Similar to MA type but with rocker pneumatic descent and different electrode holder configurations.
  • MD Type: Rocker mechanical descent with automatic welding cycle triggering and specific electrode holder options.
  • MB Type: Designed for projection welding with specific platen dimensions and pressure adjustment options.
Welding Cabinet Controllers
The M series supports six different WCCs, providing functionalities such as secondary current adjustment, force control, and program cascade, allowing precise control over the welding process.
Technical Characteristics
The machines are suitable for both spot and projection welding, offering different effective depths, power ratings, and electrode travel distances. They are equipped with standard electrode holders and compatible with various power supply configurations.
Options and Accessories
Additional options include elastomer pressure heads, manual and electronic pressure adjustments, and support stands for electrode holders, enhancing precision in welding applications.
Specifications
The document details effective depths for different machine configurations (MC, MD, MA) ranging from 250 mm to 950 mm, types of electrode holders, and an electrode holder kit for MB.
Pneumatic Components
Specifies cylinder sizes for different machine types (MA, MB, MC) with single stroke (SS) at 100 mm and double stroke (DS) at 80+20 mm, including options for analog pressure sensors and pressure adjustment methods.
Electrical Specifications
Details transformer capacities (30 kVA and 50 kVA) and voltage/frequency options, along with programmable welding controllers for various machine types.
Options and Accessories
Optional features include a protective window, heightener, column-mounted lower arm, support stand, and a double-effect pedal for squeeze/welding. Accessories like standard and special electrodes, an electrode removal key, cooling unit, force controller, and welding controller are also mentioned.
Recommendations and Warnings
The document advises that while machines meet standard uses, specific applications may require tailored solutions. ARO offers expertise to help define requirements and validate expectations through laboratory tests.
Company Information
ARO S.A. provides contact details and notes that the brochure's information is based on technical characteristics at the time of printing and may change.
See more

Catalog excerpts

Series M machines-2

Range of M pneumatic and mechanical machines Glossary: WCC: Welding Cabinet Controller SS: Single Stroke cylinder DS: Double Stroke cylinder Manual adjustment: Adjustment is performed by a pressure regulator which determines the compressed air supply of the cylinder in order to obtain the best clamping force. Electronic adjustment: The adjustment of the welding force of the cylinder is controlled by a proportional valve. Pressure program: This device allows the pressure to be varied during the force, for example, to reduce it when welding or to increase it again during the hold time.

 Open the catalog to page 2
Series M machines-3

General presentation ARO, world leader in resistance welding, offers innumerable solutions for spot or projection welding applications, within the 50% of 30 kVA and 50 kVA power ranges. This new range of M machines, completely updated and redesigned, is structured around a single frame, with a choice of 2 pneumatic cylinders, 2 transformers and a range of 6 welding cabinet controllers (WCC). The user therefore has access to a wide range of possibilities to control better the welding current and the clamping force. The pneumatic M series is equipped in standard version with a wide diversity of...

 Open the catalog to page 3
Series M machines-4

General characteristics: - 2 transformer powers: 30 or 50 kVA at 50%, - Standard voltage 400 V/50 Hz, - Cylinder clamping force at electrodes at 6 bars 740 daN, - Single stroke cylinder 100 mm, - or Double stroke cylinder 80+20 mm, - Effective depths at electrode axis, 350 or 550 mm, - Support stand for 550 mm electrode holder, - Machine equipped with standard electrode holder and a circuit breaker, - Effective spacing between arms from 59 to 374 mm (choice of 6 positions), - Machine completely cooled by water (transformer, secondary junctions, electrode holder and electrodes), - Welding current...

 Open the catalog to page 4
Series M machines-6

General characteristics: - 2 transformer powers 30 or 50 kVA, - Standard voltage 400 V/50 Hz, - Delivered without electrode holders, Effective spacing between electrode holders from 174 to 489 mm (choice of 6 positions), U O O' -Effective depths according to choice of electrode holders 250 3 5 0 550 750 950 mm -Cylinder clamping force at electrodes at 6 bars 870 590 358 257 200 daN - Single-stroke cylinder 80 mm, - or Double-stroke cylinder 60 + 20 mm, - Opening between electrodes adjustable from: 0 to 75 mm for an ED of 250 mm, 0 to 320 mm for an ED of 950 mm, - Machine equipped with standard...

 Open the catalog to page 6
Series M machines-7

U o o' MD type General characteristics: - 2 transformer powers 30 or 50 kVA, - Standard voltage 400 V/50 Hz, - Delivered without electrode holders, - Effective spacing between electrode holders from 174 to 489 mm (choice of 6 positions), - Effective depths according to choice of electrode holdersT250 I 350 I 550 I 75P' I 950 mm - Clamping force between 150 and 400 daN for 250 mm standard electrode holders, - Automatic triggering of welding cycle when preset force is reached, - Machine completely cooled by water (transformer, secondary junctions, electrode holder and electrodes), - AR.01-type...

 Open the catalog to page 7
Series M machines-8

SYMMETRICAL SETUP u a> a> SETUP WItH ELECTRODE HOLDERS UPPER AND LOWER ELECTRODE HOLDERS

 Open the catalog to page 8
Series M machines-9

CD U a) CD Standard and special STRAIGHT CENTERED ELECTRODES STRAIGHT EXCENTERED ELECTRODES INCLINED EXCENTERED ELECTRODES SPECIAL ELECTRODES SPADE-TYPE ELECTRODE HOLDERS WL 358156 with molybdenum insert light alloys (24 mm) WL 367156 long electrolytic copper for light alloys (35 mm) for two-pin electrode^^ WL 359158 with molybdenum insert WL 305145 standard 23 mm WL 305157 long 34 mm WL 360158 with molybdenum insert WL 364152 with molybdenum insert WL 308363 swivel for welding without marks WL 310104 long elbow 78 mm highly excentered WL 313950 V WL 311942 with large flat 90 mm WL 313949 with...

 Open the catalog to page 9
Series M machines-10

General characteristics: - 2 transformer powers 30 or 50 kVA, - Standard voltage 400 V/50 Hz, - Cylinder clamping force 740 daN at 6 bars, — - Single-stroke cylinder 100 mm, - or Double-stroke cylinder 80 + 20 mm, - Platen dimensions 150 x 150 mm, - 2 slots center distance 63 mm, - Effective spacing of platens 133/223/313 mm, - Effective depth at cylinder axis 150 mm, - Machine completely cooled by water (transformer, secondary junctions, platens), - Welding current adjustment by constant phase shift or by adaptive adjustment according to choice of WCC, - Bi-manual control desk for SC or DC cylinder...

 Open the catalog to page 10
Series M machines-12

10 D) C AR.01 AND 2X16III FUNCTIONS Many ARO WCC options and variants guarantee high-performance operations in all types of applications. Secondary current adjustment, force control, program cascade are but some examples of the many functionalities proposed. This approach enables the complete series of M machines to accept a range of 6 different welding cabinet controllers. # Standard function with corresponding version. O Optional function with corresponding version. Please contact us for other panels.

 Open the catalog to page 12
Series M machines-14

Column-mounted lower electrode holder for MA/MC/MD: This option allows continuous adjustment of lower electrode holder height. Support stand for 350 mm electrode holder: Ensures rigidity of the assembly and allows precision welding. This option is strongly recommended when welding to quality charter. Manual pressure adjustment: In standard version on MA, MC and MB machines. Electronic pressure adjustment by proportional valve: This option allows the force to be stored in memory during the welding cycle from the WCC irrespective of the program used. Analog pressure sensor: This assembly only allows...

 Open the catalog to page 14
Series M machines-15

Check list General characteristics and specific options OPTION(S): Protective window 150 mm heightener Column-mounted lower arm Support stand Double-effect pedal Squeeze/Welding Separate welding controller MUSTS: Standard electrodes Special electrodes Electrode removal key Cooling unit (NCREG) Force controller (dynamometer) Welding controller Standard electrode holders (MA, MC, MD) Straight electrode holders (MA, MC, MD) Inclined electrode holders (MA, MC, MD) Spade-type electrode holders (MA, MC, MD) Machine definition: . . . . . . . . . . . . . . . . . . . . . . . . . . SPECIFICITIES EFFECTIVE...

 Open the catalog to page 15
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.