6-Tool Rack Front View zoom

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6-Tool Rack 3 zoom

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6-Tool Rack Configuration 2 zoom

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6-Tool Rack on angle zoom

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Single Tool Holder zoom

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6-Tool Rack on AltMill 4×8 zoom

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6-Tool Rack on AltMill 4×8 zoom

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Side View ATC on 4×8 Rack Position 1 zoom

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ATC – Installing Rack 2 zoom

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6-Tool Rack Front View zoom

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ATC – 6-Tool Rack zoom

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6-Tool Rack Configuration zoom

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Single Tool Holder zoom

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6-Tool Rack Front View
6-Tool Rack 3
6-Tool Rack Configuration 2
6-Tool Rack on angle
Single Tool Holder
6-Tool Rack on AltMill 4×8
6-Tool Rack on AltMill 4×8
Side View ATC on 4×8 Rack Position 1
ATC – Installing Rack 2
6-Tool Rack Front View
ATC – 6-Tool Rack
6-Tool Rack Configuration
Single Tool Holder
Full Screen

ATC Tool Rack (6 Tools)

$630.00

This 6 position Tool Rack lets you level up so you can go full automation mode with your Automatic Tool Changer. It can hold up to 6 tools or combine up to two tool racks to hold a maximum of 12 tools on  your AltMill. Plus, the rack can be easily removed to accommodate larger materials along with the integrated rack sensor to automatically switch tool pickup behaviour.

Each order comes with one (1) tool rack; six (6) ISO20 tool holders; twelve (12) ER20 collects (mix of 1/8″, 1/4″, 3/8″ & 1/2″). ATC spindle sold separately. Compatible with AltMill CNCs only.

This Tool Rack is designed specifically for Sienci Labs’ Automatic Tool Changer.

Pre-orders now open. Expected delivery date to begin late February/early March 2026.

Description

***Included with your ATC Tool Rack (6 Tools)***

  • Each order comes with one (1) tool rack, capable of housing 6 tools
  • Six (6) ISO20 Tool Holders
  • 12 ER20 Collets (Mix of 1/8″, 1/4″, 3/8″ & 1/2″)
  • Compatible with ISO20-35L tool holders
  • Compatible with AltMill CNCs only
    • A maximum of two tool racks – 12 tools total – can be housed at the back of an AltMill CNC (any size or model.)
  • Easily removable to allow machine through-travel during manual mode
  • Made from anodized aluminum and stainless steel construction, with custom molded tool forks

Some images are 3D renders of products. May not be exactly as shown. Some photos may contain items for illustrative purposes, such as spindles or CNCs.

Additional information

Weight 12 lbs
Dimensions 6 × 6 × 23 in

What's Included

***Included with your ATC Tool Rack (6 Tools)***

  • Each order comes with one (1) tool rack, capable of housing 6 tools
  • Six (6) ISO20 Tool Holders
  • 12 ER20 Collets (Mix of 1/8″, 1/4″, 3/8″ & 1/2″)
  • Compatible with ISO20-35L tool holders
  • Compatible with AltMill CNCs only
    • A maximum of two tool racks – 12 tools total – can be housed at the back of an AltMill CNC (any size or model.)
  • Easily removable to allow machine through-travel during manual mode
  • Made from anodized aluminum and stainless steel construction, with custom molded tool forks

Some images are 3D renders of products. May not be exactly as shown. Some photos may contain items for illustrative purposes, such as spindles or CNCs.

Specifications

Tool Rack

  • Made from anodized aluminum and stainless steel construction, with custom molded tool forks.

Tool Holder

  • ER20MS Collet Nut, Standard ISO20-35L tool holder size

Recommended Add-ons & Accessories

FAQs

Will this ATC rack work on other CNC machines?
No. It was designed exclusively for the AltMill. It will fit any size or model: MK1 or MK2; 2×4, 4×4 or 4×8.

Will non-Sienci Labs tool holders work on this rack?
Yes, most standard ISO20 tool holders are compatible with this tool rack.

How much travel will the tool rack take away from my AltMill?
You will loose some travel once the Tool Rack is installed. Here is the remaining area to play with:

  • 4×4: 43.5″
  • 2×4: 27.5″
  • 4×8: 99″

Warranty

Items such as our Tool Racks are covered under our 60-day warranty. Learn more.

Instructions & Assembly

Videos

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