What Doherty Couplers & Attachments does

Doherty Couplers & Attachments Ltd. is a New Zealand-based manufacturer of excavator quick couplers, tilt hitches, buckets, and demolition grabs for the civil construction, earthmoving, and mining industries. The company is headquartered in Tauranga with an Australian sales presence, and operates as a wholly-owned subsidiary of the Kinshofer Group following an acquisition. Its core technology is the patented Dual Pin Locking Plus (DPL+) safety system, which locks both front and rear pins automatically without relying on gravity, deployed across the D-Lock coupler range that includes the D-Lock Hydraulic Coupler, D-Lock Tilt, D-Lock Tilt Mini, D-Lock Mini, and SmartFlow variants. Supporting product lines include Powerdig digging and cleaning buckets (1–85 tonne range), rotary tilt buckets, demolition grabs (GR Series), bucket clamps and thumbs, and custom-built manipulators.

The business generates revenue primarily through one-time hardware sales of these attachments via a quote-based pricing model, with finance options available in New Zealand and Australia. Go-to-market combines direct enterprise sales (website quote forms, phone contact) with international distribution: Kinshofer handles Europe and Werk-brau distributes in the USA. Doherty serves civil engineering contractors, equipment rental companies, excavator dealerships (Hitachi, Volvo, SANY pairing relationships), and earthmoving companies — primarily in Australia and New Zealand, with growing international reach through its parent's network. The D-Lock range is certified compliant with Australian AS13031:2023, European EN474, International ISO 13031, and Workcover NSW WC01783.

Doherty markets through trade shows (Fieldays, Diesel Dirt & Turf, Heavy Equipment and Machinery Show), an active digital presence across LinkedIn, Facebook, YouTube, and Instagram, industry publication coverage, and industry association memberships (Civil Contractors Federation Queensland, Civil Contractors New Zealand). Founded in 1996, the company operates with 11–50 employees and competes on safety-engineering differentiation, durability, and regulatory compliance rather than price or scale.

Name

Doherty Couplers & Attachments

Legal name

Doherty Couplers & Attachments Ltd.

Website

https://dohertydirect.net

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

11–50 employees

Short description

Doherty Couplers & Attachments designs and manufactures D-Lock quick couplers, Powerdig buckets, and demolition grabs for civil construction and mining operators across Australia and New Zealand. The Kinshofer-owned firm sells through direct channels and Werk-brau USA distribution, competing on patented dual-pin locking safety and multi-jurisdiction regulatory compliance.

Ownership category

akta.pro rank

Product category

Excavator Attachments and Couplers

NAICS

All Other Miscellaneous General Purpose Machinery Manufacturing (333998)

SIC

Construction Machinery & Equip (3531), Construction, Mining & Materials Handling Machinery & Equip (3530)

akta.pro primary industry

Excavators (IMAHAAAA)

Keywords

• Excavator quick couplers
• Earthmoving attachments
• Excavator buckets
• Hydraulic tilt couplers
• Construction equipment manufacturing

Headquarters

HQ city

Tauranga

HQ country

New Zealand

HQ region

Oceania

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Sales - Couplers: Sale of D-Lock hydraulic couplers, D-Lock Tilt couplers, and D-Lock Tilt Mini couplers to excavator operators. One-time product purchase with various weight classes from 1.5T to 35T machines.
2. Hardware Sales - Buckets: Sale of Powerdig digging buckets, rotary tilt buckets, cleaning and mud buckets, spades, and Vee buckets for 1-85T excavators.
3. Hardware Sales - Grabs & Grapples: Sale of demolition grabs, bucket clamps/thumbs, and custom built manipulators/grabs.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Doherty designs and manufactures fully automatic hydraulic quick couplers (D-Lock range) along with excavator buckets (Powerdig), tilt buckets, demolition grabs, and custom manipulators for 1-85 tonne excavators used in civil construction and earthmoving. Its flagship D-Lock coupler family features the patented Dual Pin Locking Plus (DPL+) safety system with 100% compliance to Australian AS13031:2023, European EN474, and International ISO 13031 standards.

Product overview

Doherty Couplers & Attachments designs and manufactures a comprehensive range of excavator couplers and attachments as part of the Kinshofer Group. The core product line centers on the D-Lock coupler family, which includes the D-Lock Hydraulic Coupler (dual-locking automatic quick coupler with patented DPL+ technology), D-Lock Tilt (combining coupling with 180-degree tilt functionality), D-Lock Tilt Mini (compact version without protruding cylinders), D-Lock Mini Coupler, and SmartFlow Coupler. The Powerdig bucket range encompasses digging buckets, cleaning and mud buckets, rotary tilt buckets, spade buckets, vee buckets, riddle buckets, and single/twin cylinder tilt buckets for 1-85T excavators. The grabs and grapples portfolio features demolition grabs (GR Series), bucket clamps and thumbs, and custom-built grabs/manipulators. Additional attachments include compaction wheels, finishing blades, rakes, and rippers. All products are designed for the Australian and New Zealand earthmoving markets with full compliance to AS13031:2023, EN474, and ISO 13031 standards.

Differentiator

Problem solved

Functional benefit

Brands

• D-Lock: Fully automatic quick coupler range, including D-Lock Hydraulic Coupler, D-Lock Tilt, and D-Lock Tilt Mini. Features dual pin locking (DPL+) and compliance with AS13031:2023, EN474, and ISO 13031.
• Powerdig

Products and services

• D-Lock Hydraulic Coupler Dual-locking automatic hydraulic quick coupler featuring patented Dual Pin Locking Plus (DPL+) safety system that locks both front and rear pins in the event of engagement force loss. Fully compliant with Australian AS13031:2023, European EN474, and International ISO 13031 standards. Designed for civil construction and earthmoving operators requiring safe, standards-compliant quick attachment changes.
• D-Lock Tilt Coupler combining D-Lock automatic quick coupling with 180-degree tilt functionality for maximum versatility on job sites while maintaining full safety compliance with AS13031:2023, EN474, and ISO 13031. Targeted at civil contractors and rental fleets requiring attachment versatility.
• D-Lock Tilt Mini Compact tilt coupler without protruding cylinders, available as pull-pin or variable-centre hydraulic version. Tilts 180 degrees with compact tip radius for maximum breakout force and minimal cylinder/hose damage risk. Backed by industry-leading two-year, 3000-hour warranty and Workcover NSW WC01783 compliance.
• D-Lock Mini Coupler Compact D-Lock coupler designed for smaller excavators, part of the D-Lock coupler range with the same DPL+ dual-pin safety system.
• SmartFlow Coupler Part of the D-Lock coupler product range offering smart flow capabilities for excavator attachments.
• Powerdig Digging Buckets High-quality excavator digging buckets designed for earthmoving applications, ranging from 1-85 tonne excavator capacity.
• Powerdig Cleaning and Mud Buckets Excavator buckets designed for cleaning and mud removal applications on construction and earthworks sites.
• Rotary Tilt Buckets Tilt buckets with rotary actuator functionality enabling precise grading and shaping operations for excavator operators.
• Spade Buckets Specialized bucket attachments for spade digging applications.
• Vee Buckets V-shaped bucket attachments for specialized trenching and excavation applications.
• Riddle Buckets Bucket attachments designed for screening and separating materials during excavation.
• Tilt Bucket (single & twin cylinder) Tilt buckets available in single or twin cylinder configurations for various excavator applications requiring angled bucket positioning.
• Demolition Grab (GR Series) GR Series robust multi-purpose excavator grabs designed for demolition applications, providing material handling and gripping capability.
• Bucket Clamps and Thumbs Attachments that enable excavators to grip, clamp, and manipulate materials securely during handling and sorting operations.
• Custom Built Grabs / Manipulators Custom-engineered grabs and manipulator attachments tailored to specific customer requirements for specialized material handling.
• Compaction Wheels Attachment wheels for soil compaction applications on construction and earthworks sites.
• Finishing Blades Blades designed for final grading and finishing work on construction sites.
• Rakes Rake attachments for material sorting, ground preparation, and site clearing operations.
• Rippers Ripper attachments for breaking up hard ground, rock surfaces, and tough terrain during excavation.

Quantifiable outcome

• D-Lock Tilt Mini comes with industry-leading two-year, 3000-hour warranty
• +1 more outcomes

Named customers8 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Four partnerships are on record, tiered core and minor.

• KinshofercoreStrategic or Co-development PartnerKinshofer acquired Doherty, making it part of the Kinshofer Group. Doherty operates as Couplers and Attachments - A Kinshofer Company. Kinshofer handles European distribution of Doherty products.
• Werk-braucoreChannel Partner/ Reseller/ DistributorWerk-brau serves as the distributor for Doherty products in the United States market.
• Civil Contractors Federation (Queensland)minorOthersDoherty is a member of the Civil Contractors Federation Queensland, supporting the civil construction industry community.
• Civil Contractors New ZealandminorOthersDoherty is a member of Civil Contractors New Zealand, supporting the civil construction industry community.

Scale indicators2 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Kinshofer: Kinshofer is Doherty's parent company and a global manufacturer of excavator and loader attachments, including quick couplers, tilt rotators, and grapples. As the acquirer and Europe distributor, it is the closest incumbent and the channel through which Doherty products reach European OEMs.
• Volvo Construction Equipment: Volvo CE manufactures excavators and offers a range of branded and co-specified attachments. Cited in Doherty customer testimonials as a pairing brand, indicating real channel overlap in the excavator ecosystem.
• Caterpillar Work Tools: Caterpillar offers an extensive line of excavator buckets, couplers, and ground-engaging tools through its Work Tools division. As a broad incumbent, it competes with Doherty for OEM and contractor attachment spend, though it does not focus exclusively on fully automatic quick couplers.
• Komatsu Attachment Group: Komatsu supplies OEM and aftermarket excavator attachments globally. Comparable customer overlap (contractors, dealers, rental fleets), but Komatsu competes across the full attachment portfolio rather than specializing in automatic couplers.

Direct peers

• Werk-brau: Werk-brau is a US-based manufacturer of excavator attachments including buckets, couplers, and grapples, and currently serves as Doherty's USA distributor. Highly comparable product line and customer base, though it operates at meaningfully larger scale in North America.
• Engcon: Engcon is a leading Swedish manufacturer of tilt rotators and automatic quick couplers for excavators. Comparable product mix centered on couplers and tilt technology, and a global distribution footprint similar to Doherty's ambitions via Kinshofer.
• Steelwrist: Steelwrist is a Swedish manufacturer of automatic quick couplers, tilt rotators, and excavator attachments. Directly competes in the same fully-automatic quick coupler category where Doherty's DPL+ system operates, with overlapping compliance to ISO 13031 and EN474.
• Rototilt: Rototilt is a Swedish manufacturer of tilt rotators and quick couplers for excavators. Overlaps directly with Doherty's D-Lock Tilt range on product functionality and competes for similar contractor and OEM customers in safety-regulated markets.
• OilQuick: OilQuick is a German manufacturer specializing in automatic hydraulic quick couplers for excavators. A direct competitor in Doherty's core product category, with strong European OEM relationships and similar compliance-driven positioning.

Emerging players

• AMI Attachments: AMI Attachments is a North American manufacturer focused on excavator attachments including thumbs, grapples, and buckets. Comparable product mix in commodity attachment categories where Doherty competes outside of its coupler differentiation.

Market position

Strengths1 record

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/channel/UCd-p3waix6ES_O6PuliubEQ
• Facebookfacebook.com/DohertyAttachments
• LinkedInlinkedin.com/company/doherty-couplers-and-attachments
• Instagraminstagram.com/dohertyattachments

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds1 record

Investors1 record

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 Doherty Couplers & Attachments