What 3arm does

3ARM is the industrial ergonomic brand of TECNOSPIRO MACHINE TOOL S.L.U., a Spain-based unit of the Spirogear Group established in 1987 to manufacture the Roscamat® tapping arm. In 2009 the company commercialised its articulated-arm expertise externally under the 3arm® name. The company designs and manufactures three core product families — Tool Balancers (Series 0 through 7 plus the Smart Arm, supporting loads up to 70 kg), Manipulators (M3, M5, M10, up to 120 kg) and Rope Balancers (Spider Column and Rail series, up to 600 kg) — with a catalogue of over 45 head systems yielding more than 1 million configuration combinations, plus a range of accessories (extension arms, columns, rails, trolleys). Core technology is self-balancing pneumatic and servo-assisted compensation that makes tools and loads feel weightless, with variants such as E-Hybrid (two pneumatic circuits with electric control) and torque-reaction absorption for high-power tools, plus a programmable Smart Control System with I/O communication for Smart Factory integration.

The business model is direct B2B with no e-commerce or distribution intermediaries: customers submit quote requests via a multilingual website (English, Spanish, French, German), after which engineering consultation configures the arm to the application. Pricing is not publicly disclosed. Customer segments are organised by vertical — primarily automotive manufacturing (including EV battery handling) and general manufacturing/assembly, with secondary exposure to aerospace, mining, wind energy and construction. The company operates with 11-50 employees from a single HQ in Sant Joan de Vilatorrada, Catalonia, and has no subsidiaries, no funding rounds disclosed and no public listing; ownership is retained within the Spirogear Group. Marketing is largely digital, centred on the multilingual website, a technical blog on industrial ergonomics, and a password-protected virtual showroom for prospective customers.

Name

3arm

Legal name

TECNOSPIRO MACHINE TOOL SL

Website

https://toolbalancerarms-3arm.com

Company type

Private

Founded year

1987

Operating status

Operating

Headcount range

11–50 employees

Short description

3ARM designs and manufactures industrial ergonomic articulating arms, manipulators and rope balancers for weightless tool and load handling up to 600kg. The Spain-based unit of TECNOSPIRO MACHINE TOOL sells engineered-to-order solutions via direct B2B sales to automotive, aerospace and general manufacturers.

Ownership category

akta.pro rank

Product category

Industrial Ergonomic Handling Equipment

NAICS

Overhead Traveling Crane, Hoist, and Monorail System Manufacturing (333923), Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing (333924)

SIC

Construction, Mining & Materials Handling Machinery & Equip (3530), General Industrial Machinery & Equipment (3560)

akta.pro primary industry

Hoists (Electric, Manual & Pneumatic) (IMAHAJAG)

akta.pro secondary industries

Lifting Attachments & Material Handling Accessories (Fork Attachments, Slings, Rigging) (IMAHABAJ), Weighing & Force Measurement (Load cells, scales, torque, strain measurement) (IMAGAFAF)

Keywords

• Industrial ergonomic arms
• Tool balancers
• Manipulators
• Rope balancers
• Lift assist devices

Headquarters

HQ city

Sant Joan De Vilatorrada

HQ country

Spain

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Supply Chain, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Industrial Ergonomic Equipment Sales: Direct B2B sales of tool balancers, manipulators, and rope balancer systems to manufacturing companies. Products are customized solutions with various configurations and accessories.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

3ARM designs and manufactures industrial ergonomic articulating arms, tool balancers, manipulators, and rope balancers that allow operators to handle tools and loads in effectively weightless conditions. The product range covers load capacities from 0 to 600 kg and is used on production lines and workstations in sectors such as automotive, aerospace, mining, wind energy, construction, and food processing to eliminate worker fatigue and musculoskeletal strain.

Product overview

3arm offers a comprehensive portfolio of industrial ergonomic solutions organized into three core product categories: Tool Balancers (Series 0-7 and Smart Arm) for weightless tool handling up to 70kg with more than 45 head systems and over 1 million combinations; Manipulators (M3, M5, M10) for zero-gravity load handling up to 120kg with customizable gripping systems; and Rope Balancers (Spider C Column and Spider R Rail series) for electronic cable-based lifting up to 600kg. The company also provides a full range of accessories including extension arms, elevators, lifters, columns, trolleys, and rails to optimize reach and positioning. All products are designed for manufacturing environments including automotive, aerospace, construction, mining, and wind energy applications.

Differentiator

Problem solved

Functional benefit

Brands

• Roscamat®: Original tapping arm brand established in 1987, now part of the 3ARM product ecosystem under Tecnospiro Machine Tool S.L.U.

Products and services

• Tool Balancers

Quantifiable outcome

• Eliminates physical effort perception, reducing accumulated operator fatigue throughout shifts
• +2 more outcomes

Segments6 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• Spirogear Group CompaniescoreOthers · 1 January 1987Parent corporate group. TECNOSPIRO MACHINE TOOL S.L.U. is part of Spirogear Group Companies (established 1947), a manufacturer of Bevel Gears. The original Roscamat® tapping arm was developed in 1987 to satisfy internal production needs of Spiroide, a Bevel Gear manufacturer within the group.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• KUKA AG: KUKA is a major industrial robotics and automation incumbent. While its core business is industrial robots, its collaborative robots and end-effector ecosystem increasingly target the same ergonomic handling use cases that 3arm addresses with its articulating arms and manipulators.
• Festo: Festo is a large German pneumatics and automation supplier whose portfolio includes pneumatic balancing systems and articulated arm solutions. It serves the same customer base as 3arm (automotive, manufacturing) but as part of a much broader automation catalog rather than a dedicated ergonomic-arm specialist.
• Ingersoll Rand: Ingersoll Rand is a diversified industrial manufacturer whose Precision Fluidics and Power Tools divisions serve automotive and industrial assembly customers with ergonomic tool support solutions, overlapping with 3arm's automotive and general manufacturing segments.
• Bosch Rexroth: Bosch Rexroth is a large German manufacturer of drive and motion control, factory automation, and assembly technology. Its manual and automated handling solutions and linear motion products overlap with 3arm's industrial ergonomic handling portfolio across automotive and general manufacturing customers.
• ABB: ABB is a global industrial automation and robotics incumbent whose collaborative robot (YuMi) and industrial robot portfolio competes in adjacent ergonomic handling and precision assembly markets, especially in automotive and electronics manufacturing.

Direct peers

• Schunk: Schunk is a German manufacturer of toolholding, workholding, and automation components including pneumatic and servo balancing arms and grippers. Its Force-Controlled Balancing Systems directly overlap 3arm's Tool Balancer and Manipulator product lines for industrial assembly applications.
• Destaco (Auburn Hills): Destaco manufactures industrial tool balancers, articulating arms, and manual/material handling solutions. Its Tool Arm and Tool Block product lines compete directly with 3arm's articulating-arm portfolio for automotive and general assembly customers.
• Carl Stahl (technoCRAFT, now part of the Carl Stahl Group): Carl Stahl offers industrial hoists, balancers, and crane systems used in manufacturing environments. Its pneumatic and electric balancer/hoist products overlap with 3arm's rope balancers and tool balancers for tool and load handling.
• Ewellix (SKF Linear and Actuation): Ewellix (formerly part of SKF's linear and actuation business) manufactures electric linear motion, lifting columns, and handling solutions for industrial applications. Its lifting and positioning products are comparable to 3arm's manipulator and rope balancer offerings for ergonomic load handling.

Emerging players

• Gimatic: Gimatic develops end-effectors, grippers, and EOAT components for industrial automation, including solutions for collaborative robots and ergonomic handling. It is a relevant adjacent peer for 3arm's Smart Arm and manipulator product roadmap around tool integration and smart factory interfaces.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/3armergonomics
• Facebookfacebook.com/profile.php
• LinkedInlinkedin.com/company/tecnospiro-machine-tool-s-l-

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about 3arm