3D Systems, Inc.
19
p/n 76-D022 Rev. A
NITROGEN SUPPLY OPTIONS
Use one of the following nitrogen supply methods to meet the requirements:
•
Liquid or bottled (gaseous) nitrogen with auto-switching manifold
•
Nitrogen generator
•
Bulk nitrogen tank
NOTE: Nitrogen supply systems are customer supplied and installed . 3D Systems does not service nitrogen
supply equipment except for 3D Systems Nitrogen generator .
A properly functioning nitrogen supply system that meets the requirements listed below must be in place before the ProX
®
SLS
6100 System installation .
NITROGEN SUPPLY REQUIREMENTS
COMPONENT
REQUIREMENT
Purity
99%
Nitrogen line fittings
Inlet: ¼ inch Barbed Hose Fitting
Continuous flow
10 slpm (21 scfh) for length of build
Purge flow
50 lpm (106 cfh) for 15 minutes
Exhaust
Must exhaust to outside at pressure 0 .0025 bar (1 .0 in H
2
O)
Weekly consumption
140 m
3
(4944 ft
3
) of N
2
gas based on 24 h/day operation with 7 purge cycles
N
2
Generator O
2
Exhaust
The nitrogen generator separates nitrogen from ambient air (CDA required), creating two air streams; N
2
supply and O
2
waste .
Both exit at the bottom of the generator .
The N
2
supply stream is greater than 99% nitrogen . The O
2
waste stream is less than 40% oxygen . If the SLS process room meets
the air exchange requirements, it is safe to vent the O
2
waste stream into the room .
NITROGEN SUPPLY AND EXHAUST LINES
Nitrogen supply and exhaust lines must be in place before ProX
®
SLS 6100 System installation . Follow these guidelines for
nitrogen supply and exhaust lines:
•
Route nitrogen supply lines through the ceiling.
•
Locate the drops over the right side of the process station (viewed from the front).
NOTE: Keep the nitrogen lines—especially the exhaust line—as short as possible to ensure proper pressure .
COMPRESSED AIR REQUIREMENTS
COMPRESSED AIR
ProX 6100 3D PRINTER
MQC SYSTEM
3D SYSTEMS N
2
GENERATOR (OPTIONAL)
Connection Type
1/4” Barbed Hose
Fitting
1/4” Barbed Hose
Fitting
Industrial interchange male coupling plug:
1/4 inch coupling size, air inlet at top of nitrogen
generator
Flow Rate
35 slpm
130 slpm
270 lpm (572 cfh)
Supply Pressure
6 bar (90 psi)
6 bar (90 psi)
620-690 kPa (90-100 psi)
Quality
CDA (Clean Dry Air)
ISO
8573 .1
Class
1 .4 .2
CDA (Clean Dry Air)
ISO
8573 .1
Class
1 .4 .2
CDA (Clean Dry Air)
I
SO
8573 .1
Class
1 .4 .2
10
NITROGEN AND COMPRESSED AIR REQUIREMENTS