Head Overview
Hyrel 3D Printers offer a variety of modular print heads, which are compared below.
Modular Heads Comparison
The following chart compares and contrasts the various extrusion heads:
| Designation | Image | Material | Viscosity | Motor | Volume | Reservoir | Temperature | Internal # | Other | 
|---|---|---|---|---|---|---|---|---|---|
| FH2-260 |   | 
1.75mm Filament | Standard |  NEMA 17  5.18:1  | 
n/a | n/a |  Up to 260°C limited use up to 270°C  | 
104211 | For Standard Material | 
| FH2-450 |   | 
1.75mm Filament | Exotic |  NEMA 17  5.18:1  | 
n/a | n/a | 270 to 450°C | 104211-450 | For High-Temp Material | 
|  HT3-250  Not available  | 
  | 
2.85mm Filament | Standard |  NEMA 17  14:1  | 
n/a | n/a |  Up to 250°C limited use up to 265°C  | 
402219 | For Standard Material | 
|  HT3-450  Not available  | 
  | 
2.85mm Filament | Exotic |  NEMA 17  14:1  | 
n/a | n/a | 275 to 450°C | 400109-3 | For High-Temp Material | 
| SDS-1 |   | 
Liquid, Gel | Up to 100,000 cP |  NEMA 11  3:1  | 
 Actual: 1cc  Usable: 1cc  | 
Polypropylene | Ambient | 402099-1-A |  Disposable Reservoir Normal Torque  | 
| SDS-5 |   | 
Liquid, Gel | Up to 100,000 cP |  NEMA 11  3:1  | 
 Actual: 5cc  Usable:5cc  | 
Polypropylene | Ambient | 402099-5-Alum |  Disposable Reservoir Normal Torque  | 
| SDS-10 |   | 
Liquid, Gel | Up to 100,000 cP |  NEMA 11  3:1  | 
 Actual: 10cc  Usable:10cc  | 
Polypropylene | Ambient | 402099-10-Alum |  Disposable Reservoir Normal Torque  | 
| HSD-10-Ardes |   | 
Liquid, Gel | Up to 100,000 cP |  NEMA 11  1:1  | 
 Actual: 10cc  Usable:10cc  | 
Polyamide | Up to 100°C | 404047-A | n/a | 
| SDS-30 |   | 
Liquid, Gel | Up to 100,000 cP |  NEMA 11  3:1  | 
 Actual: 30cc  Usable:30cc  | 
Polypropylene | Ambient | 402099-30-Alum |  Disposable Reservoir Normal Torque  | 
| SDS-30XT |   | 
Liquid, Gel | Up to 300,000 cP |  NEMA 17  25.9:1  | 
 Actual: 30cc  Usable:30cc  | 
Polypropylene | Ambient | 402099-30-XT-A |  Disposable Reservoir Extra Torque  | 
| HSD-30-BD |   | 
Liquid, Gel | Up to 100,000 cP |  NEMA 11  3:1  | 
 Actual: 30cc  Usable:30cc  | 
Polypropylene | Up to 50°C | 402099-HSD-30 |  Disposable Reservoir Normal Torque  | 
| RSD-30-BD |   | 
Liquid, Gel | Up to 100,000 cP |  NEMA 11  3:1  | 
 Actual: 30cc  Usable:30cc  | 
Polypropylene | cool to ~20°C below or warm to ~40°C above room temp | 404155-A |  Disposable Reservoir Normal Torque  | 
| SDS-60 |   | 
Liquid, Gel | Up to 100,000 cP |  NEMA 11  3:1  | 
 Actual: 60cc  Usable:60cc  | 
Polypropylene | Ambient | 402099-60-Alum |  Disposable Reservoir Normal Torque  | 
| SDS-60XT |   | 
Liquid, Gel | Up to 300,000 cP |  NEMA 17  25.9:1  | 
 Actual: 60cc  Usable:60cc  | 
Polypropylene | Ambient | 402099-60-XT-A |  Disposable Reservoir Extra Torque  | 
| SDS-150XT | 50px | Liquid, Gel | Up to 300,000 cP |  NEMA 17  25.9:1  | 
 Actual: 60cc  Usable:60cc  | 
Polypropylene | Ambient | 402099-150-A |  Disposable Reservoir Extra Torque  | 
| DSD-50 |   | 
Two-part Mixtures | Up to 100,000 cP |  NEMA 11  1:1  | 
 Actual & Usable:  25cc each part  | 
Polypropylene | Ambient | 402099-50-DSD |  Disposable Reservoirs Normal Torque 1:1, 2:1, 3:1 Blend Ratios  | 
| DSD-50XT |   | 
Two-part Mixtures | Up to 300,000 cP |  NEMA 17  25.9:1  | 
 Actual & Usable:  25cc each part  | 
Polypropylene | Ambient | 402099-50-DSD-Xt |  Disposable Reservoirs Normal Torque 1:1, 2:1, 3:1 Blend Ratios  | 
| SMH-2 |   | 
Two-part Mixtures | Up to 100,000 cP | Depends on feeding heads | Depends on feeding heads | Depends on feeding heads | Ambient | 402132-ALUM |  *Fed by other heads  Variable Blend Ratios  | 
| DMH-2 |   | 
Two-part Mixtures | Depends on feeding heads | Depends on feeding heads | Depends on feeding heads | Depends on feeding heads | Ambient | 400110-A |  *Fed by other heads  Variable Blend Ratios  | 
| EMO |   | 
Liquid, Gel, Paste | Up to 300,000 cP |  NEMA 11  19:1, 27:1  | 
 Actual: 25cc  Usable:~25cc  | 
Aluminum | Ambient | 402098-A |  Reusable Reservoir Normal Torque  | 
|  EMO-XT  eXtra Torque  | 
  | 
Liquid, Gel, Paste, Clay | Up to 1,000,000 cP |  NEMA 11  100:1  | 
 Actual: 15cc  Usable:11cc  | 
Stainless | Ambient | 402098-XT |  Reusable Reservoir High Torque  | 
|  EMO-ST  Super Torque  | 
  | 
Liquid, Gel, Paste, Clay | Up to 2,000,000 cP |  NEMA 17  25.9:1  | 
 Actual: 30cc  Usable:30cc  | 
Stainless | Ambient | 402184 |  Reusable Reservoir High Torque  | 
| VOL |   | 
Liquid, Gel, Paste | Up to 300,000 cP |  NEMA 11  51:1  | 
 Actual: 25cc  Usable:25cc  | 
Aluminum | Up to 90°C | 404041-A |  Reusable Reservoir Normal Torque  | 
| KR2 |   | 
Hot Melt Adhesives, Thermoplastics | Up to 1,000,000 cP |  NEMA 11  100:1  | 
 Actual: 15cc  Usable:11cc  | 
Stainless | Up to 180°C | 404042-ALUM |  Reusable Reservoir High Torque  | 
|  KR2-ST  Super Torque  | 
  | 
Hot Melt Adhesives, Thermoplastics | Up to 2,000,000 cP |  NEMA 17  25.9:1  | 
 Actual: 30cc  Usable:30cc  | 
Stainless | Up to 180°C | 402184-K |  Reusable Reservoir High Torque  | 
| TAM |   | 
Hot Melt Adhesives, Thermoplastics | Up to 1,000,000 cP |  NEMA 11  100:1  | 
 Actual: 15cc  Usable:11cc  | 
Stainless | Up to 270°C | 404048-ALUM |  Reusable Reservoir High Torque  | 
| UVP-365 nm |   | 
Photoinitiators | n/a | ~5 W | n/a | n/a | n/a | 402302-365 | Focusable | 
| UVP-405 nm |   | 
Photoinitiators | n/a | ~5 W | n/a | n/a | n/a | 402302-405 | Focusable | 
| UVP-450 nm |   | 
Photoinitiators | n/a | ~5 W | n/a | n/a | n/a | 402302-450 | Focusable | 
| LA6-450 |   | 
Opaque | Laser | 6 W | n/a | n/a | n/a | 402108-A | 6 W, 450 nm, 0.25 mm ⌀ | 
| ST3 |   | 
 Plastics, Brass  LIGHT Machining  | 
Spindle Tool | n/a | 48VDC, 8.3A, 400W | n/a | n/a | 402081-A | 12,000 (with no load) | 
Note, for crosslinking heads, just see the standard heads and add the UV LED mechanism.
For details about Filament-based print heads, please visit our Filament_Heads page.
For details about Reservoir-based print heads, please visit our Reservoir_Heads page.
Apparent Size Discrepancies
Why do several heads have a smaller usable reservoir volume compared to actual volume? Excellent question. For these heads, we found that the low-profile, single o-ring plungers were not good enough, and under pressure (and especially when heated), material would blow past the plunger, yielding unreliable dispensing rates. We redesigned a better plunger assembly with tighter tolerances and the option for a double o-ring, but this took up several cc of reservoir volume. This means that while the reservoirs themselves are still 15 cc, the volume usable for payload is actually between 10 cc and 11 cc.
Nordson and ViscoTec Heads
Some customers have requested that we configure our equipment in such a way that heads from other companies like the Nordson Ultimus V heads or one of the Viscotec Vipro heads.Yes, Hyrel equipment can accommodate these and other print heads with just a little custom code and a special tool holder. Please contact us if you have any questions at all.
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