Facts

• Company: ACSL
• Product type: UAV
• Status: active
• Website: https://product.acsl.co.jp/en/product/post-435/

Profile sections

• Summary
• Overview
• Market context
• Audience
• Workflow
• Capability
• Deployment environment
• Positioning tags
• Specifications
• Tags
• Comparable Systems
• Sources

Summary

Fi4 is ACSL confined-space inspection drone. It uses a carbon-fiber core, foam bumper, stable flight controls and IP55 protection for narrow pipes and harsh inspection environments.

Overview

Fi4 is ACSL confined-space inspection drone. It uses a carbon-fiber core, foam bumper, stable flight controls and IP55 protection for narrow pipes and harsh inspection environments.

Market context

Fi4 is ACSL confined-space inspection drone for enclosed infrastructure such as sewers, ducts and narrow pipes, with carbon-fiber core and IP55 protection.

• Target environment: Confined spaces, sewers, ducts, pipes and other enclosed industrial infrastructure.
• Workflow context: Confined-space inspection, visual inspection of enclosed assets and safe data capture where human entry is costly or hazardous.
• Customer context: Infrastructure inspection teams, industrial operators and asset management teams.
• Deployment model: Commercial product for specialized confined-space inspection workflows.
• Commercial maturity: Commercially available inspection UAV with dedicated confined-space design.
• Adoption constraints: Specialized for pipe and duct inspection. Limited general-purpose outdoor utility.
• Market position: Gives ACSL a specialized infrastructure-inspection product separate from its general outdoor UAV lineup.
• Adjacent products: Dronut DD1, confined-space inspection UAVs

Audience

Inspectors

Workflow

Confined-space inspection, visual inspection of enclosed assets and safe data capture where human entry is costly or hazardous.

Capability

Autonomous navigation

Deployment environment

Confined spaces, sewers, ducts, pipes and other enclosed industrial infrastructure.

Positioning tags

• Audience: Inspectors
• Workflow: Confined-space inspection, visual inspection of enclosed assets and safe data capture where human entry is costly or hazardous.
• Capability: Autonomous navigation
• Deployment environment: Confined spaces, sewers, ducts, pipes and other enclosed industrial infrastructure.

Specifications

• Ingress Protection: IP55
• Core Material: Carbon fiber
• Bumper: replaceable foam; flotation
• Propeller Layout: forward-biased layout for pipe-like spaces
• Controller: Smart controller with dedicated app, real-time pipe condition display
• Applications: Sewer and duct survey, pipe navigation, GPS-denied inspection, confined-space survey
• Dimensions: 610 mm length, 290 mm width, 145 mm body height, 220 mm camera-side height
• Aircraft Weight: 2.4 kg including survey camera and battery
• Max Speed: 3 m/s maximum flight speed
• Flight Time: About 4 minutes maximum flight time

Tags

• Peer Group: Tactical ISR UAV
• Workflow: Confined-space inspection
• Capability: Autonomous navigation
• Deployment Environment: Industrial facility
• Stack Layer: Finished robot platform
• Commercial Stage: Commercial product

Comparable Systems

• Dronut DD1 - Cleo Robotics - UAV