How does Fabtron ensure the #4 brushed finish matches lobby architectural metalwork?

We utilize our Kuhlmeyer long-belt traveling stroke sander using controlled abrasive grit sequences (180 to 240 grit followed by non-woven conditioning belts) to calibrate surface roughness to Ra < 16 µin.

HIGH-SECURITY OEM CONTRACT MANUFACTURING • SPEED GATES

Architectural Optical Turnstiles & Glass Speed Gate Cabinets

Q: What sheet metal gauges do you recommend for commercial optical turnstiles?

We recommend 10-gauge (0.135") or 12-gauge (0.105") stainless steel for structural baseplates, motor bulkheads, and floor anchoring channels. For aesthetic side panels and removable access lids, 14-gauge (0.075") or 12-gauge 304 stainless steel provides ideal rigidity and sharp bend crispness.

Q: Can you pre-cut custom bezels for third-party biometric and RFID readers?

Yes. Our TRUMPF 4000W CNC laser cuts mounting holes, countersinks, and flush display pockets to ±0.002" accuracy for HID Signo, Allegion, IDEMIA MorphoWave, and custom LED light pipes.

Q: What is your prototype vs. high-volume production turnaround time?

Because we hold 561,000 lbs of raw sheet metal in our automated STOPA system and execute laser cutting, forming, welding, and graining 100% in-house in Plainville, CT, we typically deliver first-article prototypes in 2 to 3 weeks.

Precision contract manufacturing for high-throughput corporate headquarters, government facilities, and transit lobbies. Fabtron Incorporated fabricates luxury optical turnstile pedestals, motorized glass wing enclosures, and biometric access pillars in heavy-gauge 304 and 316 stainless steel with seamless weld graining.

Material Gauge 10 • 12 • 14 GA 304 / 316 Stainless

Surface Quality Ra < 16 µin Kuhlmeyer #4 Satin

Envelope Accuracy ±0.005" TRUMPF CNC Bending

Duty Cycle > 5M CYCLES Structural Rigidity

Submit Turnstile CAD / RFQ → Call Plant: (860) 410-1801 Perey Parts Registry

Cabinet Specs PLAINVILLE CT

Standard Lengths: 48", 55", 60", 72"

Passage Clearance: 28" Std / 36" ADA

Laser Cut Tolerances: ±0.002" Holes

Weld Corner Graining: 100% Blended #4

Lead Time Advantage: 2–3 Wks Turnkey

Zero Outsource Latency: Laser blanking, multi-axis bending, TIG welding, Kuhlmeyer stroke sanding, and protective masking all performed in Plainville, CT.

ENGINEERING ANATOMY

Structural Anatomy of an Optical Turnstile Pedestal

High-end architectural turnstiles must combine jewelry-level exterior finishing with industrial-grade interior structural stiffness to absorb repeated passenger lateral force and motor torque.

Rigid Internal Chassis

Heavy 10-gauge structural baseplates and internal gusset towers laser cut on our TRUMPF 4000W system to anchor motor assemblies and eliminate pedestal deflection.

Anchor: 4× 1/2" Wedge Anchors

Drive Motor & Encoder Mounts

Precision CNC machined mounting plates for brushless DC servo drives, planetary gearboxes, magnetic brake clutches, and dual optical rotary encoders.

Tolerance: ±0.002" Pilot Bores

Sensor & Reader Insets

Flush-machined cutouts for HID Signo RFID readers, MorphoWave touchless biometric scanners, QR code windows, and infrared presence sensor arrays.

Bezels: Smoked Acrylic / Polycarbonate

Glass Wing Clamp Hubs

Precision CNC formed and clamped stainless barrier arm brackets holding 10mm to 12mm clear tempered or laminated architectural security glass wings.

Glass: 10mm / 12mm Tempered

PROPRIETARY SURFACE FINISHING

The Kuhlmeyer Long-Belt Graining Advantage

In visible corporate lobbies, hand-sanded grinder swirl marks and uneven weld seam blending ruin the look of high-end access gates. Fabtron eliminates this problem entirely with our verified Kuhlmeyer long-belt traveling stroke sander.

✓

Continuous Linear Grain Direction: Produces consistent, unbroken #4 architectural satin grain across 60-inch and 72-inch turnstile top lids and side panels.

✓

Seamless Welded Corner Blending: External TIG welded corners are ground, surfaced, and re-grained until the joint becomes completely invisible to the touch and eye.

✓

Micro-Smooth Roughness (Ra < 16 µin): Surfaces resist fingerprints, ease maintenance, and provide a sanitary feel for high-volume pedestrian contact.

Kuhlmeyer Long-Belt Polisher in Fabtron Plainville Plant

Shop Floor Verification • Plainville, CT

Kuhlmeyer Traveling Long-Belt Stroke Polisher • Large Envelope

Machinery Type: Kuhlmeyer Double-Belt Gantry

Abrasive Grit Sequence: 120 → 180 → 240 → Scotch-Brite™

Applications: Optical Turnstiles • Transit Fareboxes

ENGINEERING SPECIFICATION MATRIX

Optical Turnstile Manufacturing Capabilities & Tolerances

Comprehensive dimensional envelope and fabrication parameters for access control original equipment manufacturers.

Pedestal Cabinet Lengths

48" (Compact Lobby), 55" (Standard), 60" (Extended Detection), 72" (High-Security Anti-Tailgate)

±0.010" Overall Length

Passage Clear Widths

28" Standard Pedestrian Lane • 36" ADA Title III Compliant Wheelchair / Delivery Lane

Symmetric or Asymmetric Pairs

Stainless Alloys & Gauges

304 Stainless (Indoor Architectural) • 316L Stainless (Coastal & High-Humidity Transit). 10, 12, and 14 Gauge.

ASTM A240 Certified Sheet

Finishing & Surface Treatments

#4 Directional Satin (Standard), PVD Titanium Matte Black, Satin Bronze, High-Gloss Mirror #8, Powder Coat.

Ra < 16 µin Uniform Graining

Engineering Parameter	Standard Specification	Manufacturing Tolerance	Fabtron Machine Equipment
Cabinet Length Envelopes	48", 55", 60", and 72" custom lengths	±0.010"	TRUMPF 4000W / TruBend 5130
Pedestal Width & Height	7.0" to 12.0" Width • 38.0" to 42.0" Height	±0.005"	TRUMPF TruBend 5130 6-Axis
Laser Piercing & Cutouts	RFID, QR, Biometric & Infrared sensor cutouts	±0.002"	High-Pressure Nitrogen Laser
Surface Roughness (Graining)	#4 Directional Satin Architectural Finish	Ra < 16 µin	Kuhlmeyer Long-Belt Sander
Fastener Installation	PEM® blind threaded standoffs & studs	Mil-Spec Push-Out	Haeger Automated Insertion

PRODUCTION ARCHITECTURE

Single-Facility Optical Turnstile Manufacturing Flow

How Fabtron controls 100% of quality from raw sheet retrieval to crating inside our 80 Farmington Valley Drive plant.

STAGE 01

STOPA ASRS Retrieval

Raw 10, 12, or 14 gauge 304/316 stainless sheets automatically shuttled from our 561,000 LB inventory without distributor wait.

STAGE 02

4000W Nitrogen Laser Blanking

Clean, oxide-free laser cut edges with ±0.002" hole accuracy. Ready for immediate welding without edge grinding.

STAGE 03

TRUMPF TruBend 5130 Forming

Dynamic crowning maintains precise 90.0° bend angles across 60-inch cabinet lengths with zero angle variance.

STAGE 04

Precision TIG Corner Welding

Certified TIG welding of cabinet corners with complete penetration and minimal heat input to prevent panel warping.

STAGE 05

Kuhlmeyer Stroke Sanding

Traveling long-belt polisher blends all welded corners and produces flawless #4 directional architectural satin grain.

STAGE 06

Polymask & Export Crating

Full-surface adhesive protective film applied before foam-padded wooden crating to ensure zero transit scratching.

ENGINEERING RULES

DFM Guidelines for Optical Turnstile Enclosure Design

Design recommendations to optimize manufacturing speed, reduce tool setup, and achieve flawless lobby tolerances.

Bend Relief Dimensions:

When designing return flanges on turnstile top lids, specify rectangular bend reliefs with a minimum depth of $T + R$ and width of $1.5T$ to prevent metal tearing at corner intersections.

Hole-to-Bend Clearance:

Keep card reader cutout edges and sensor holes at least $2T + R$ away from bend tangents. This prevents hole elongation and distortion during press brake forming.

Grain Direction Alignment:

Ensure flat pattern nesting aligns with sheet grain orientation so that cabinet side panels and top lids have parallel, matching satin grain lines when assembled.

FREQUENTLY ASKED QUESTIONS

Optical Turnstile OEM Manufacturing FAQ

Answers to common technical questions from access control product managers, mechanical engineers, and security procurement teams.

What sheet metal gauges do you recommend for commercial optical turnstiles?

We generally recommend 10-gauge (0.135") or 12-gauge (0.105") stainless steel for structural baseplates, motor bulkheads, and floor anchoring channels to eliminate deflection under pedestrian impact. For exterior aesthetic side panels and removable access lids, 14-gauge (0.075") or 12-gauge 304 stainless steel provides the ideal balance of rigidity, weight, and razor-sharp bend crispness.

How does Fabtron ensure the #4 brushed finish matches other architectural lobby metalwork?

We utilize our Kuhlmeyer long-belt traveling stroke sander using controlled abrasive grit sequences (typically 180 to 240 grit followed by non-woven conditioning belts) to calibrate surface roughness to Ra < 16 µin. We verify finish uniformity with optical surface roughness gages and provide physical finish coupon sign-offs prior to production runs.

Can you pre-cut custom bezels for third-party biometric and RFID readers?

Yes. Our TRUMPF 4000W CNC laser cuts mounting holes, countersinks, and flush display pockets to ±0.002" accuracy for HID Signo™, Allegion, IDEMIA MorphoWave™, facial recognition cameras, barcode scanners, and custom LED light pipes. Standoff studs and PEM nuts are pressed into place automatically.

What is your prototype vs. high-volume production turnaround time?

Because we hold 561,000 lbs of raw sheet metal in our automated STOPA system and execute laser cutting, forming, welding, and graining 100% in-house in Plainville, CT, we typically deliver first-article prototypes in 2 to 3 weeks. Production batch quantities (20 to 200+ lane sets) are scheduled in predictable weekly releases.