OPERATIONS
SECTION 1
• TECHNICAL DATA •
SPECIFICATIONS ON AIR POWERED SCREED:
MODEL
TRUSS BLADES
10’
lbs/kg
7 1/2’
lbs/kg
5’
lbs/kg
2 1/2’
lbs/kg
2’
lbs/kg
MAXIMUM
WIDTHS
12SX
12 GA. GALV. STEEL
140/64
104/47
70/32
36/16
28/13
55’
12HD
10 GA. GALV. STEEL
186/84
138/63
93/42
47/21
37/17
65’
12SHD
10 GA. STAINLESS
186/84
138/63
93/42
47/21
37/17
75’
•
Top Pipe - Coupling System - Fine Thread Adjustment 1 5/16-16tpi with Full Flow 1” Non-
Restricting Air System with Dual Locking Jam Nuts.
•
Vibration Proof Welds with Exclusive Vibration-Dampening System.
•
Bolt-On Blades with Quick Connecting Splice Plates Front and Back at each Truss Section using
1/2-13 Nuts and Bolts Throughout.
•
Balanced Design Truss Height to Overall Base Width Provides Equilateral Triangle Strength for
Obtaining Precise Grade Control and Structure Integrity.
•
Top Pipe Coupling System Provides for Crowned or Invert Slab Section without loosening Bottom
Splice Blade Bolts. Special Crowns or Inverts are obtainable with Ball Joint Top Pipe Coupler or
Crown Invert Bracket. Crowns greater than 1/8”/ft are considered special.
•
NOTE: Select Screed Width to Allow Minimum Overhangs Past Forms; 6” Overhangs are Ideal,
S1-8
MODEL
1. SINGLE
VIBRATORS
2. DUAL
VIBRATORS
12SX
9
3
2
1
12HD
9
5
3
2
12SHD
9
5
3
2
VIBRATORS PER SECTION
7-1/2' 5' 2'
1. SINGLE VIBRATORS 30" centers alternating front to back.
2. DUAL VIBRATORS 30" centers front and back.
•
VIBRATORS - Naval Bronze Piston Pneumatic Vibrator. Rebuildable, Rust-Resistant, One
Moving Part, Fatigue Proof Air Fitting. Weight 2.42#. Piston is 1" Diameter with Unbalanced
travel. Air Consumption 4.0 CFM at 60 PSI. Vibrations Per Minute, 9500 at 60 PSI.
•
Exclusive 3 Bolt Attaching Bracket using High Strength Fine Thread Double Nut Vibrator Bolt with
2 each 1/2" Bracket Bolts.
•
Vibratory Supply Air Supply - 200 PSI with Push Lock Fittings.
•
Full Flow 1" Air Flow System - Includes Air Connecting Hose to Screed, Off/On Valve Also used
as Volume Flow Valve, Air Gauge, In-line 1" Mist Lubricator Provides Adjustable Lubrication.
Top Dome Sight Drip Glass, Fill Cap, 1 Quart Capacity Steel Body with Sight Glass for
Lubrication Oil.
•
Lubrication Mist Lube - NR88 or Allen Air Lube; Aft Dextron II is Allowable for Intermittent Use.
