Schaaf

Name

Schaaf

Legal name

SCHAAF GmbH & Co. KG

Website

https://schaaf-gmbh.com

Company type

Private

Founded year

1950

Operating status

Operating

Headcount range

51–100 employees

Ownership category

akta.pro rank

Product category

Industrial Joining Technology

NAICS

Bolt, Nut, Screw, Rivet, and Washer Manufacturing (332722), Fluid Power Valve and Hose Fitting Manufacturing (332912)

SIC

Bolts, Nuts, Screws, Rivets & Washers (3452), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Pneumatic Components (FRLs, Cylinders, Valves) (IMAHAGAC)

akta.pro secondary industries

Pump & Compressor Packages (Skids, Booster Sets) (IMAHANAG), Controls, Monitoring & Condition Management (for Pumps/Compressors) (IMAHANAI)

Keywords

• Industrial joining technology
• Hydraulic bolt tensioning
• Bolted connection solutions
• Wind energy fasteners
• Expansion bolt systems

Headquarters

HQ city

Erkelenz

HQ country

Germany

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Industrial Joining Technology Products: Sale of hydraulic high-pressure tools, screw tensioning devices, hydraulic nuts, connecting bolts, and specialized joining solutions to industrial customers.
2. Custom Solutions and Engineering: Custom-designed special solutions including high-pressure cylinders, hydraulic mounting/dismounting devices, and customer-specific special fixtures for complex industrial applications.
3. IOT/Software Solutions: Software solutions including Online Bolt Load Monitoring (OBLM), TMS/TSI control systems, pump control systems, and documentation tools.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Schaaf GmbH & Co. KG (SCHAAF) develops, manufactures, and distributes hydraulic joining technology products and connection elements for industrial applications. The core product portfolio includes hydraulic screw clamping devices (SSV series PG1-PG8), hydraulic nuts (HM PG9-PG13), expansion bolt systems (ExpaTen family), grip-based connections (GripLoc, GripCon), shaft-hub connection solutions (ExpaHub, ShrinkNut, Ölpressverband), and patented TTG technology for turbine threaded connections. The company also provides hand lever pumps, pump aggregates, custom special solutions, and IoT/software solutions such as OBLM Online Bolt Load Monitoring and TMS/TSI tool management systems.

Product overview

SCHAAF is a leading industrial joining technology company with over seven decades of experience, offering a comprehensive portfolio of hydraulic connection products, tools, and IoT/software solutions. The core product line includes SSV hydraulic screw clamping devices (PG1-PG8), HM hydraulic nuts (PG9-PG13), MSN Multiple Stud Nuts, ExpaTen expansion bolted connections (including ExpaTen 2, ExpaBolt, ExpaTen QL, ExpaTen ETC), GripLoc grip-based connections (Standard, Flange, Flow Caps, and Special Solutions), GripCon, ExpaHub, ShrinkNut, and Ölpressverband (oil pressure joints), plus custom special solutions like high-pressure cylinders and hydraulic mounting/dismounting devices. The TTG (Next Generation Joining Technology) represents Schaaf's patented advanced connection technology with extended service life. Product extensions include HP hand lever pumps (1600-1S/2S, 3000-HT, 4000-LT), pump aggregates (HDE, MDS, MMDS, STG, HDL, FSE series), and IoT/software solutions including OBLM Online Bolt Load Monitoring, TMS/TSI tool management systems, pump control software, and data visualization tools. Schaaf serves diverse industries including wind energy, shipbuilding, general mechanical engineering, hydro energy, power plant technology, cranes and construction machinery, metal industry, motors and gears, chemical industry, and civil engineering.

Differentiator

Problem solved

Functional benefit

Products and services

• SSV Screw Tensioning Devices (PG1-PG8) Hydraulic screw clamping devices (Schraubenspannvorrichtung) available in eight size classes (PG1 through PG8) for secure bolted connections in industrial applications. Designed for industrial bolting operations requiring precise preload control.
• Hydraulic Nuts (HM PG9-PG13) Hydraulic nuts (Hydraulikmutter) in five size classes (PG9 through PG13) for bolt fastening applications in industrial machinery, providing high-pressure fastening capability.
• MSN Multiple Stud Nut Multiple stud nut system for efficient multi-bolt fastening operations in industrial applications.
• ExpaTen Expansion Bolt System Patent-protected expansion-type bolted connection solution for maintenance-free fastening in shipbuilding and other industries. Includes ExpaTen, ExpaTen 2, ExpaBolt, ExpaTen QL (quick-lock), and ExpaTen ETC (enhanced torque control) variants.
• GripLoc Connection System Grip-based connection element for maintenance-free bolted connections, available in Standard, Flange, Flow Caps, and Special Solutions variants for different application requirements.
• GripCon Mechanical grip-based connector solution for secure, maintenance-free bolted joints, particularly for shaft and axle connections.
• ExpaHub Hub expansion connection solution for shaft and hub applications in industrial machinery.
• ShrinkNut Shrink-fit nut solution for high-strength industrial connections.
• Ölpressverband (Oil Pressure Joint) Oil pressure-based interference fit connection system for precision shaft-hub connections.
• TTG (Next Generation Joining Technology) Certified and patented next-generation joining technology (Turbine Threaded Connection) with extended service life, representing SCHAAF's advanced connection technology specifically for turbine and high-load industrial applications.
• Custom Special Solutions (Speziallösungen) Custom-engineered special solutions for complex industrial applications, including high-pressure cylinders, hydraulic mounting and dismounting devices, special fixtures, and tension nuts designed to customer specifications.
• Hand Lever Pumps (HP Series) Manual hand lever pumps for hydraulic bolt tensioning operations, including HP 1600-1S/-2S standard models, HP 3000-HT high-temperature variant, and HP 4000-LT low-temperature variant.
• Pump Aggregates (HDE, MDS, MMDS, STG, HDL, FSE Series) Hydraulic pump aggregates for industrial bolt tensioning systems, including HDE 3000-BK, HDE 4000, MDS, MMDS, STG 4000-2K (dual-circuit), HDL series, and FSE models for various capacity and application requirements.
• OBLM Online Bolt Load Monitoring IoT-based software solution for online real-time monitoring of bolt load and connection integrity in industrial bolted connections.
• TMS/TSI Tool Management and Monitoring System Tool management and monitoring software for hydraulic tools and systems, providing operational oversight and documentation capabilities.
• Pump Control Software (Pumpensteuerung) Software solution for controlling and managing hydraulic pump systems used in bolt tensioning operations.
• FSTS Fastening System Technology Fastening system technology solution for industrial applications, providing coordinated fastening systems.
• Zubehör (Accessories) Comprehensive range of matching accessories for SCHAAF connection systems, completing the 100% system solution offering.

Segments10 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

One partnership is on record.

• Girls Who CodeminorStrategic or Co-development Partner · 14 October 2025SCHAAF collaborated with Girls Who Code on the 'Speak On It' campaign to encourage girls and nonbinary youth to share their opinions on AI. The campaign included a 'Hot Take Hotline' and was created to address gender gaps in the AI workforce, focusing on empowering youth voice in AI development. A related study was conducted with UCLA exploring perspectives of Gen Z girls and nonbinary youth on generative AI.

Scale indicators3 records

Broad incumbents

• Atlas Copco (Industrial Tools): Atlas Copco's Industrial Tools division offers hydraulic torque wrenches, bolt tensioning, and assembly tooling across a much broader portfolio. Overlaps with Schaaf on hydraulic bolting solutions but competes from a global incumbent position across many adjacent industrial tool categories.
• Bossard Group: Bossard is a global fastening solutions specialist with engineering services, Smart Factory logistics, and product solutions across industrial fasteners. Comparable to Schaaf in bolting-as-a-system philosophy and serving similar mechanical engineering customers.
• Würth Industrie (Würth Group): Würth Industrie provides industrial fastening and assembly solutions, including high-strength bolts, anchoring systems, and technical advisory, to OEMs across Europe. Overlaps with Schaaf's mechanical engineering and construction machinery customer base as a much larger, broader incumbent.
• ENERPAC: ENERPAC manufactures high-force hydraulic tools including bolt tensioners, torque wrenches, and controlled bolting systems used in wind, power, and oil and gas. Directly comparable to Schaaf's hydraulic nuts, screw tensioning devices, and high-pressure cylinders, but with a much wider global footprint.

Direct peers

• Boltight: Boltight supplies hydraulic bolt tensioning tools and subsea bolting solutions for wind, oil and gas, and power generation. It competes head-to-head with Schaaf in maintenance-free bolted connections and multi-stud tensioning for critical joints.
• ITH Bolting Technology: ITH is a German-headquartered manufacturer of hydraulic bolt tensioning and torque equipment for wind energy, plant construction, and heavy machinery. It overlaps directly with Schaaf's SSV tensioning devices, hydraulic nuts, and wind turbine tower bolting applications.
• HYTORC: HYTORC is a global specialist in hydraulic, pneumatic, and electric bolt tensioning and torque tools for industrial bolting. It is the most direct comparable to Schaaf's SSV screw tensioning devices, HM hydraulic nuts, and ExpaTen expansion bolt portfolio across wind, power, and heavy industry customers.
• Nord-Lock Group: Nord-Lock specializes in wedge-locking and bolting security solutions for safety-critical joints in energy, marine, and heavy industry. Comparable to Schaaf on the bolted-joint reliability proposition and overlapping customer base in wind, marine, and power.
• Superbolt (Nord-Lock Group): Superbolt (part of Nord-Lock Group) manufactures multi-jackbolt tensioners and hydraulic tensioning products for large-diameter bolts. Directly comparable to Schaaf's MSN Multiple Stud Nut and SSV hydraulic tensioning devices for large industrial flanges and rotors.

Regional players

• Stahl CraneSystems: Stahl CraneSystems manufactures crane and hoist systems with a focus on bolted-joint reliability and high-load connections. It is a comparable German Mittelstand specialist in safety-critical mechanical assemblies for cranes and heavy machinery, an end-market that Schaaf also targets.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xtwitter.com/intent/tweet?text=SCHAAF
• YouTubeyoutube.com/channel/UCJfkln8LVDeGgV-V8yzePBQ
• Facebookfacebook.com/Schaaf.gmbh.de
• LinkedInlinkedin.com/company/schaaf-gmbh-com
• Instagraminstagram.com/schaaf.gmbh

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Schaaf