What Maeda Seisakusho does

Maeda Seisakusho Co., Ltd. (株式会社前田製作所) is a Japanese manufacturer of compact construction and industrial machinery, founded in 1962 and headquartered in Nagano, Japan, employing 705 people across 36 office, service, and rental locations. The company designs and assembles a portfolio centered on its signature spider cranes (かにクレーン), including battery-powered variants MC285CB-3 and MC305CB-5 with patented charging technology enabling continuous operation during charging, as well as the larger MC305C-5, MC405C-5 (with split-spec variant), and knuckle boom MK3053C. The crawler crane lineup (CC423S-1, CC985S-3, CC1485S-3, underground-spec CC1485G-1, and large CC1908S-1) ranges from 2.93t to 8.1t lifting capacity with multi-angle outrigger systems, moment limiters, and remote control. Adjacent products include MCX-series truck-mounted cargo cranes, transport carts (LD06, LD09), IoT-enabled anti-freeze spreaders (DSF020-3/DS100), self-propelled screen BM545M-3, forestry forwarder FC560S, hydraulic yarding machines, and underground dump truck MDT30E4f. Manufacturing is ISO 9001 and ISO 14001 certified with a 140-point pre-shipment inspection per machine and the company holds a 1994 Deming Prize.

The business operates across four revenue streams: hardware sales of proprietary Maeda-branded products; sales, service, and rental of Komatsu construction equipment through one of the largest Komatsu dealerships in Japan (covering Nagano, Yamanashi, Aichi, and Mie prefectures) via the Rental21 brand; after-sales service and parts supply backed by a 30,000-SKU parts center; and made-to-order custom manufacturing (受注製品) covering shield machines, bridges, water gates, special vehicles, and factory equipment. Distribution is direct to enterprise customers in Japan across East Japan, Central Japan, and West Japan sales offices, plus international dealer partners reaching approximately 55 countries; MAEDA AMERICA Inc. was established in 2022 as a wholly-owned subsidiary for North America. Maeda Seisakusho became a wholly-owned subsidiary of publicly-traded Infroneer Holdings Co., Ltd. in 2021 (delisted from TSE JASDAQ), and acquired Iwashita Seisakusho Co., Ltd. as a subsidiary in 2024. Go-to-market relies on enterprise field sales, channel partners, trade show presence, and direct dealer-led relationships rather than self-serve or transactional channels.

Name

Maeda Seisakusho

Legal name

MAEDA SEISAKUSHO CO., LTD.

Website

https://maesei.co.jp

Company type

Private

Founded year

1962

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Maeda Seisakusho is a Japanese manufacturer of compact spider cranes, crawler cranes, and custom industrial equipment, also operating as a top-tier Komatsu dealer across four prefectures, with rental, service, and international distribution reaching approximately 55 countries.

Ownership category

akta.pro rank

Product category

Construction Machinery and Industrial Equipment Manufacturing

NAICS

Material Handling Equipment Manufacturing (33392), Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing (333924), Construction Machinery Manufacturing (333120)

SIC

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

akta.pro primary industry

Mobile & Crawler Cranes (IMAHAJAA)

akta.pro secondary industries

Cranes, Hoists & Overhead Material Handling (Industrial) (IMAHABAE), Truck-Mounted & Loader Cranes (IMAHAJAF), Crane & Hoist Safety & Monitoring Systems (Limiters, Anti-collision, Load Monitoring) (IMAHAJAL), Gear & Lifting Equipment Rental (Cranes, Spreaders, Forklifts, Reach Stackers) (TLAHALAD)

Keywords

• Compact crane manufacturing
• Spider crane equipment
• Crawler crane production
• Construction machinery dealership
• Industrial equipment manufacturing

Headquarters

HQ city

Nagano

HQ country

Japan

HQ region

Asia

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Crane and Construction Equipment Sales: Sale of manufactured Maeda branded products including spider cranes (かにクレーン), crawler cranes (クローラクレーン), cargo cranes, and other construction/industrial equipment. Also includes sales of Komatsu construction machinery as authorized dealer.
2. Rental Services: Rental of construction equipment and machinery through Rental21 brand, covering both Maeda products and Komatsu equipment. Provides flexible access to equipment without capital outlay for customers.
3. After-sales Service and Maintenance: Service, maintenance, and parts supply for sold and rented equipment. Parts center stocks approximately 30,000 items for rapid delivery to customers.
4. Custom/Made-to-Order Products: Design and manufacture of custom equipment including tunnel boring machines, underground dump trucks, bridge equipment, water gates, special vehicles, and factory equipment based on customer specifications.

Go-to-market motion3 records

Distribution channels5 records

Marketing channels5 records

Core offering

Maeda Seisakusho designs, manufactures, and sells compact spider cranes (かにクレーン), crawler cranes (クローラクレーン), truck-mounted cargo cranes, and a broad range of specialized industrial equipment (transport carts, anti-freeze spreaders, yarding machines, forwarders, underground dump trucks, self-propelled screens). In parallel, the company operates as a Komatsu construction equipment dealership across Nagano, Yamanashi, Aichi and Mie prefectures, rents both Maeda and Komatsu equipment through the Rental21 brand, and produces custom-made industrial equipment such as tunnel boring machines, bridges, water gates and special vehicles.

Product overview

Maeda Seisakusho is a Japanese construction and industrial machinery manufacturer established in 1962, producing a comprehensive portfolio of specialized equipment centered around crane products. The core offering consists of spider cranes (かにクレーン) including MC285C-3, MC285CB-3 (battery), MC305C-5, MC305CB-5 (battery), MC405C-5 with split specification variant, and MK3053C knuckle boom crane, plus compact models MC054C and MC055C. The crawler crane lineup (クローラクレーン) features CC423S-1, CC985S-3, CC1485S-3, underground-spec CC1485G-1, and large-capacity CC1908S-1. Related products include MCX-series truck-mounted cargo cranes, LD06/LD09 transport carts, DSF020-3 stationary and DS100 mobile anti-freeze spreaders (marketed as まきえもん), BM545M-3 self-propelled screen, FY253/FY273 hydraulic yarding machines, FC560S forestry forwarder, and MDT30E4f underground dump truck. The company also produces made-to-order custom equipment (shield machines, bridges, water gates) and modular unit products for assembly. As a Komatsu dealer, they additionally resell Komatsu construction equipment. The company operates under the Infroneer Holdings group following a 2021 corporate integration.

Differentiator

Problem solved

Functional benefit

Brands

• かにクレーン (Spider Cranes): Maeda's signature compact crawler crane product line with four outriggers, designed for confined-space and indoor lifting operations. Includes models MC285C-3, MC285CB-3, MC305C-5, MC305CB-5, MC405C-5, MK3053C, MC054C, MC055C.
• クローラクレーン (Crawler Cranes)
• カーゴクレーン MCXシリーズ
• MAEDA TECHNOLOGY
• レンタル21
• MAEDA SEISAKUSHO / MAEDA MINICRANES
• 運ん太郎 (Unn-Tarō)
• まきえもん (Makiemon)

Products and services

• Spider Crane MC285C-3 (かにクレーン MC285C-3) Compact spider crane with 2.82t lifting capacity and 8.7m maximum ground clearance. Features multi-outrigger positions, advanced moment limiter with 7.0-inch color LCD monitor, and an optional detachable electric unit. Sold to construction and civil engineering companies for indoor and confined-space lifting applications.
• Battery Spider Crane MC285CB-3 (かにクレーン MC285CB-3) Battery-powered spider crane with lithium-ion battery offering zero emissions, quiet operation, 3.5-hour quick charging, and continuous operation during charging via patented technology. Includes eco mode. Designed for indoor construction sites where exhaust emissions are restricted.
• Spider Crane MC305C-5 (かにクレーン MC305C-5) Standard spider crane for construction with 2.98t capacity, 12.52m maximum clearance, and 12.16m working radius. Features multi-outrigger mode and an optional split specification for narrow access sites. Launched in May 2025.
• Battery Spider Crane MC305CB-5 (かにクレーン MC305CB-5) Fully electric spider crane with large-capacity lithium-ion battery, 4.5-hour charging, ultra-quiet operation, and zero exhaust emissions suitable for indoor use.
• Spider Crane MC405C-5 (かにクレーン MC405C-5) Large spider crane with 2.98t capacity, 16.8m maximum clearance, and 20.5m underground reach. Includes optional fly jib, outrigger interlock, and moment limiter as standard. Launched in May 2025.
• Split Specification Spider Crane MC405C-5 (かにクレーン「MC405C-5 分割仕様」) Split specification variant of the MC405C-5 spider crane that can be disassembled into units under 1.0t with up to 5 sections for transport into facilities or mountainous areas inaccessible to the standard model. Launched in May 2026.
• Knuckle Boom Crane MK3053C (ナックルブームクレーン MK3053C) Knuckle boom crane with 2.98t main boom capacity and 1.0t jib capacity. Features fully automatic infinite variable multi-outrigger, variable gauge crawlers, automatic jib & boom storage, and independent proportional control paddle lever radio control. Available in diesel, electric unit, and battery specifications. Launched August 2025.
• Compact Spider Crane MC054C (かにクレーン MC054C) Compact spider crane with 495kg lifting capacity requiring no operator license. 600mm body width enables passage through standard doorways. Based on the MC104C platform.
• Compact Spider Crane MC055C (かにクレーン MC055C) Spider crane with 495kg capacity and extended 6.9m working radius. 660mm stored width for doorway access. Based on the MC235CWL 2.3t platform for safer operations.
• Compact Crawler Crane CC423S-1 (クローラクレーン CC423S-1) Compact crawler crane with 2.93t lifting capacity, 9.46m clearance. Features compact design for tight spaces and rear small swing specification.
• Mid-size Crawler Crane CC985S-3 (クローラクレーン CC985S-3) Mid-size crawler crane with 4.9t capacity, 16.5m clearance, and 14.67m working radius. Features advanced safety systems, multi-assist view camera system, and automatic air conditioning.
• Large Crawler Crane CC1485S-3 (クローラクレーン CC1485S-3) Large crawler crane with 4.9t capacity and 16.7m clearance. Compact design with reduced tail swing and height. Features maintenance-free DOC exhaust aftertreatment.
• Underground-Spec Crawler Crane CC1485G-1 (クローラクレーン CC1485G-1 地下仕様) Underground specification crawler crane with low-height short boom designed for sites with ceiling constraints. Enhanced lifting capacity for overhead-limited environments such as tunnels and underground mines.
• Large-Capacity Crawler Crane CC1908S-1 (クローラクレーン CC1908S-1) Largest crawler crane with 8.1t lifting capacity and 20.1m clearance. Features 10.4-inch touchscreen monitor, multi-assist view camera system, and minimal tail swing radius.
• MCX-Series Truck-Mounted Cargo Cranes (カーゴクレーン MCXシリーズ) Truck-mounted cargo cranes available in small, medium, and large truck configurations. 2.53t-2.93t capacity with 3-6 section booms. Features overload prevention device as standard, 7-corner boom cross-section, and load display system.
• Transport Cart LD06 (運搬台車 運ん太郎 LD06) Compact transport cart with 600kg load capacity and 570mm body width. Hydraulic drive system for smooth operation. Features lift and dump functions with independent levers.
• Transport Cart LD09 (運搬台車 運ん太郎 LD09) Transport cart with 950kg load capacity and 660mm body width. Hydraulic drive system for transporting heavy materials in confined spaces.
• Stationary Anti-Freeze Spreader DSF020-3 (凍結防止剤散布装置 まきえもん DSF020-3) Stationary anti-freeze spreading system (Makiemon brand) for automated road de-icing. Features automatic and manual spreading modes, FRP hopper, and optional IoT-based remote management system for smartphone/PC monitoring.
• Compact Anti-Freeze Spreader DSF020-3C (凍結防止剤散布装置 まきえもん DSF020-3C) Compact stationary anti-freeze spreader for spot spreading at tunnel exits, snow shade locations, and other slip hazard areas.
• Self-Propelled Anti-Freeze Spreading Vehicle DS100 (凍結防止剤散布車 DS100) Self-propelled anti-freeze spreading vehicle for road maintenance. 1.0m³ capacity, 4-wheel drive, one-touch control box for single-person operation.
• Self-Propelled Screening Machine BM545M-3 (自走式スクリーン BM545M-3) Compact self-propelled screening machine for construction residual soil and mixed waste. Three-direction discharge, dual-deck vibrating screen, remote control operation. Complies with 2014 exhaust emission standards.
• Hydraulic Yarding Machine FY253 (油圧式集材機 FY253) Hydraulic yarding machine for forestry operations. Radio control enables 2-person operation with automated carriage movement to designated landing areas.
• Hydraulic Yarding Machine FY273 (油圧式集材機 FY273) Advanced hydraulic yarding machine with improved safety features. Includes radio control transmitter, multiple safety devices, standard monitoring camera, and fully hydraulic 3-drum interlock synchronization.
• Forestry Forwarder FC560S (フォワーダ FC560S) Forestry forwarder with 5,600kg payload capacity and 8,760kg machine weight. Features ROPS cabin, rear and right view cameras, 7-inch monitor, 240L fuel tank. Options include radio control grapple and suspension seat.
• Underground Dump Truck MDT30E4f (坑内用ダンプトラック MDT30E4f) Underground dump truck with 27t payload capacity, articulated steering for tight mine turning. Features DEUTZ diesel engine compliant with 2014 off-road regulations, LED lights, and air-conditioned pressurized cabin.
• Aerial Work Platforms (高所作業車) Aerial work platforms available in various models including NUL series (electric) and NUS/NUZ series for different capacity and environment requirements.
• Made-to-Order Custom Equipment (受注製品) Custom manufacturing including shield machines for tunnel excavation, underground dump trucks, bridge fabrication and installation, water gates, screen equipment, special vehicles, railway traverser equipment, and factory automation equipment.
• Modular Unit Products (ユニット製品) Modular units including boom/jib units (5-section, 3.1-10.3m), spider leg units (600-1670mm width), transport cart units (600-10000kg capacity), and forwarder units for customized machine configurations.
• Komatsu Construction Equipment Sales, Service and Rental (コマツ商品・サービス) Sales, service and rental of Komatsu construction equipment including ICT excavators, bulldozers, and the Smart Construction system, distributed through the Komatsu authorized dealership covering Nagano, Yamanashi, Aichi and Mie prefectures.
• Rental21 Equipment Rental Service (レンタル21) Rental services for construction equipment and industrial machinery covering both Maeda-branded products and Komatsu equipment. Provides flexible access to equipment without capital outlay for customers across the dealership network.
• Battery Crane Remote Control Technology (Patent) Patented battery crane charging technology enabling short-time charging and continuous operation during charging via external power supply. Featured in MC285CB-3, MC305CB-5 and other battery crane models.
• Crawler Crane Remote Control System (クローラクレーンの遠隔操縦技術) Remote control technology for crawler cranes jointly developed with EARTHBRAIN, enabling remote operation of construction equipment to address labor shortages and improve safety in hazardous work environments. Demonstrated at CSPI-EXPO 2026.
• Spider Crane MC305CWMB-5 (かにクレーン MC305CWMB-5) Spider crane model MC305CWMB-5 introduced as part of the May 2025 product launch alongside the MC305C-5 and MC405C-5 spider cranes.
• After-Sales Service, Maintenance and Parts Supply After-sales service, maintenance, and parts supply for both sold and rented Maeda and Komatsu equipment. Parts center adjacent to the factory stocks approximately 30,000 SKUs for rapid customer delivery.

Quantifiable outcome

• Zero exhaust emissions with battery-powered crane operation
• +2 more outcomes

Named customers5 records

Segments5 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Five partnerships are on record, tiered key/joint development, subsidiary/acquisition, subsidiary/market expansion, parent/group and core/flagship.

• EARTHBRAIN Co., Ltd.key/joint developmentStrategic or Co-development Partner · 11 June 2026Joint development of remote control technology for crawler cranes. First demonstration planned at CSPI-EXPO 2026 (June 17-20, Makuhari Messe). Aims to develop remote operation capabilities for construction equipment to address labor shortages and improve safety in hazardous work environments.
• Iwashita Manufacturing (岩下製作所)subsidiary/acquisitionOthers · 1 January 2024Became a subsidiary in 2024 through acquisition. Part of the expanded group companies under Maeda Seisakusho's parent company Infroneer Holdings.
• MAEDA AMERICA Inc.subsidiary/market expansionChannel Partner/ Reseller/ Distributor · 1 January 2022Wholly-owned subsidiary established in 2022 to serve the North American market. Supports expansion of Maeda crane sales and service in the United States.
• Infroneer Holdings Co., Ltd. (インフロニア・ホールディングス)parent/groupOthers · 1 January 2021Infroneer Holdings is the holding company established in 2021 through joint holding company structure. Maeda Seisakusho is a consolidated subsidiary within the Infroneer Group, which includes Maeda Corporation, Maeda Road, Japan Wind Development, Mitsui Sumitomo Construction, and Swing (水ing).
• Komatsu Ltd. (小松製作所)core/flagshipChannel Partner/ Reseller/ Distributor · 1 January 1990Komatsu dealership agreement serving Nagano, Yamanashi, Aichi, and Mie prefectures since 1990. One of the largest domestic Komatsu dealership networks covering four prefectures. Provides sales, service, and rental of Komatsu construction equipment. Service designated factory contract established in 1963.

Scale indicators6 records

Recent moves11 records

Expansion highlights6 records

Market position

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Instagraminstagram.com/infroneer.hd
• LinkedInlinkedin.com/company/maeda-seisakusho-co-ltd

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles16 records

Subsidiaries2 records

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 Maeda Seisakusho