Help fund our injection molding machine
A community pledge drive for the i3 Detroit molding zone.
$2,000Pledged
2Backers
$1,000To go
Goal: $3,000 · 67% funded
⏳ Pledging closes June 9, 2026
The machine
🏭 Arburg 221-75-350 · 1989We need $3,000 in pledges to bring a larger plastic injection molding machine to the zone — similar to the one we had to scrap several years ago. It'll let members mold plastic parts up to the size of your hand.
📐 Specs
Overview
ModelAllrounder 221-75-350 (1989)
TypeHydraulic injection molder
Weight~2,138 lbs (970 kg)
Dimensions
Length8.9–10.5 ft (2,700–3,200 mm)
Width3.3–3.9 ft (1,000–1,200 mm)
Height4.9–6.9 ft (1,500–2,100 mm)
Tie-bar spacing8.7 × 8.7 in (221 × 221 mm)
Performance
Clamping force35 tons
Max material pressure~22,700–34,800 PSI (1,570–2,400 bar)
Shot weight — interchangeable screw
Swap the screw to change shot capacity:
20 mm
1.3 oz
~31 cm³25 mm
1.4 oz
~31 cm³30 mm
2.08 oz
35 mm
2.37 oz
The Arburg 221-75-350 (1989) we're pledging for.
Make your pledge
Pledge-only — you won't be asked to pay anything unless we reach the goal.