40" Baby Riser Column for C-Stand Turtle Base (5/8" Pin)
SKU:
GSA-ASVRB-400
40" Baby Riser Column for C-Stand Turtle Base (5/8" Pin)
Engineering Fact Sheet & Mechanical Specifications
Elevation & Weight Metrics Imperial / Metric
| Maximum Height | 10' 4" (316.2 cm) |
| Minimum Height | 4' 2" (127 cm) |
| Total Stand Weight | 17 lbs (7.8 kg) |
| Base Footprint Diameter | 2' 5" (73.7 cm) |
| Working Load Limit (WLL) | 30.0 lbs (13.6 kg) Direct Vertical / 10.0 lbs (4.5 kg) at Full Horizontal Arm Extension |
Mechanical Architecture Hardware Standards
| Floor Clearance | 1.5" (3.8 cm) |
| Folded Dimensions | 4' 2" H Γ 1' 7" W |
| Riser Column Sections | 2 Telescoping Sections |
| Head / Mounting Interface | 5/8" Baby Pin |
| Base & Leg Architecture | Sliding Leg |
| Leveling Leg (Rocky Mtn) | Yes |
40" C-Stand Cinema Rigging Physics & Mechanical Safety
Hollywood Stage ProtocolsDual Mechanical Load Ratings
30 LBS VERT / 10 LBS ARMWhen mounting luminaires directly onto the top 5/8" Baby Pin, the stand supports its full 30.0 lbs (13.6 kg) direct vertical WLL. When extending a 40" gobo arm horizontally, payload capacity decreases to 10.0 lbs (4.5 kg) due to rotational torque (Ο = r Γ F β€ 45 NΒ·m / 33.2 ft-lbs) on the 2.5" grip head knuckle.
The Right-Hand Rule of Rigging Safety
CLOCKWISE GRAVITY LOCKAlways orient extension arms and modifiers so load gravity acts clockwise relative to the T-handle knob. Downward weight actively self-tightens the knuckle brake pads; mounting in reverse allows gravity to loosen the T-handle and causes catastrophic fixture slippage.
High-Leg Ballast & Turtle Base Stabilization
MOMENT COUNTERWEIGHTINGCentury stand turtle bases feature stepped nesting legs. The High Leg provides the primary stabilizing lever arm. Always point the high leg directly in the direction of the cantilevered arm and secure it with a minimum 25 lb (11.3 kg) saddle sandbag to prevent stand tipping.
C-Stand Base Architecture & Kinematic Selection Guide
4 Hollywood Base ArchitecturesBreakdown Turtle Base
1.5" CLEARANCE β’ DETACHABLEβ’ 1.5" (3.8 cm) Floor Clearance: Ultra-low profile slides effortlessly beneath dolly tracks, sound carts, and set furniture.
β’ Modular Packing: Risers and folded bases pack separately into flight cases or grip truck bins.
Other Available Hollywood Base Architectures:
Compare alternative models & explore direct linksSpring-Loaded Turtle Base
ALTERNATIVEβ’ Twist-and-Lock Spring Detent: Single twist action instantly deploys and locks legs into 120Β° stance with zero loose knobs.
β’ Vibration-Proof Interlock: High-tension internal spring mechanism prevents leg drift during rapid set moves.
β’ 4.0" (10.2 cm) Floor Clearance: Higher under-hub housing protects internal spring detents.
Sliding Leg (Rocky Mountain)
ALTERNATIVEβ’ Single Elevating Leg: Top leg slides along the bottom column to level on stairs (7"β8" risers), street curbs, and steep slopes.
β’ Fixed Single-Unit Integrity: Permanent riser assembly ensures base and column never separate or loosen on set.
β’ 1.5" (3.8 cm) Low Clearance: Low/medium legs slide freely beneath camera dolly tracks.
Super Sliding Leg Base
ALTERNATIVEβ’ Dual Independent Sliding Legs: Two sliding collars allow Leg 2 and Leg 3 to be positioned at separate elevation planes.
β’ Extreme Architectural Geometry: Conquers steep stadium bleachers, spiral staircases, and irregular scaffolding pipes.
β’ Stance Modulation: Adjust footprint diameter for narrow soundstage alleyways or high-wind stances.
Complete Your C-Stand Rigging Package
Engineered to integrate seamlessly with Norms 2-1/2" Gobo Heads, Stainless Steel Grip Extension Arms, Spring Clamps, and Cordura Saddle Sandbags.
First-Ever Full Lifetime Warranty on Grip Stands
All Norms grip stands are backed by a complete lifetime warranty against manufacturing defects.
Product Info
| Color | Chrome or Void Black |