
3 arm Series 7 – a heavy-duty ergonomic tool balancer arm for industrial use, with secure braking and precise load control.
3 arm Series 7 by Tecnospiro is a heavy-duty ergonomic tool balancer arm designed to support the most demanding power tools in industrial environments.
It helps create safer, more comfortable work, reducing fatigue and injury while improving productivity and load control.
| Property | Value |
|---|---|
| Vertical reach | 700 mm (27″) |
| Horizontal reach | 1,670 mm (65″) |
| Max. capacity | 70 kg / 154 lbs |
| Max. torque | 1,000 Nm (737 ft-lb) |
| Radial Arm (Bottom/Top Mounted) | Tilting Arm | A (mm/in) | B (mm/in) | C (mm/in) | D (mm/in) | E (mm/in) | F (mm/in) |
|---|---|---|---|---|---|---|---|
| PS/AS | BS | 640 / 25.2″ | 694 / 27.3″ | 1,459 / 57.4″ | 549 / 21.6″ | 151 / 5.9″ | 700 / 27.6″ |
Dimensional drawing of the arm; middle joint 125 mm.

| Head | Vertical (Vert) | Horizontal (Horiz) | Any Angle (Ang) |
|---|---|---|---|
| BA | 1,000 Nm (738 ft-lb) | 500 Nm (369 ft-lb) | X |
| R / RA / RB | 600 Nm (443 ft-lb) | 500 Nm (369 ft-lb) | 400 Nm (295 ft-lb) |
| RS / RAS / RBS | 600 Nm (443 ft-lb) | 500 Nm (369 ft-lb) | 500 Nm (369 ft-lb) |
X – the head is not rated for any-angle torque work.
Torque work in vertical (Vert), horizontal (Horiz) and any-angle (Ang) orientations.

| Image | Code | Brake Type |
|---|---|---|
![]() | L00 | No Brakes |
![]() | L11 | Manual |
![]() | L22 | Pneumatic |
![]() | L50 | Manual Locking base |
![]() | L92 | Tool Trigger Activated |
| Code | Head Member | Torque |
|---|---|---|
| B | Vertical Flat | ✔ |
| BA | Vertical with Ring | ✔ |
| C | Vertical Adjustable | – |
| E | Flat Articulated | – |
| EA | Articulated with Ring | ✔ |
| ED | Pneumatic Flat Articulated | – |
| F | Articulated Adjustable | – |
| GA | Quick Change | – |
| H | Heavy-Duty Applications | – |
| J | Magnetic Articulated Drill | – |
| K | Universal Strap | – |
| L | Adjustable Ball and Socket | – |
| LA | Vertical Pneumatic Ball and Socket | – |
| LB | Horizontal Adjustable Ball and Socket | – |
| LC | Horizontal Pneumatic Ball and Socket | – |
| M | Constant Pressure Support | – |
| N | Multiposition Articulated | – |
| P | Double Articulated Flat | – |
| Q | Heavy-Duty Multiposition Articulated | – |
| R | Revolver | ✔ |
| RA | Swing Revolver | ✔ |
| RAS | Swing Revolver Auto | ✔ |
| RB | Revolver Pistol | ✔ |
| RBS | Revolver Pistol Auto | ✔ |
| RC | Vertical & Horizontal | – |
| RS | Revolver Auto | ✔ |
| SN | Giraffe Multiposition | – |
| SR | Giraffe Revolver | ✔ |
| T | Multiposition Articulated Pistol | – |
| U | Heavy-Duty Multiposition Articulated Pistol | – |
| W | Vertical Bar | – |
| WA | Vertical Bar with Pneumatic Brake | ✔ |
| WC | Vertical Bar with Brake | – |
| Z | Fork | – |
✔ – head rated for torque work (see the torque recommendations table).
What is Series 7 used for?
It is suitable for heavy-duty assembly, drilling, fastening and material handling in industrial environments.
Can it be used with a mobile cart?
Yes, it is compatible with a mobile cart and provides a wide working area for heavy tools.
What is the main benefit of Series 7?
It supports demanding tools with precise load control, high safety and capacity up to 70 kg.
The HADI Technologies team will help you select the right configuration, verify application requirements and provide technical information about Ergonomic Tool Balancer Arm - 3 arm Series 7.
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3arm · Ergonomic Assistive Solutions for Assembly and ManufacturingThe right solution starts with a clear brief
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