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On-Demand CNC Platform

CNC Machining for
Landing Gear &
Actuation Parts

We machine gear struts, torque links, actuator bodies, hydraulic manifolds, and trunnion fittings from high-strength 4340 steel, 300M, and titanium 6Al-4V. Critical bores to ±0.0005" with full material traceability.

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$22B
Global landing gear
market size
MarketsandMarkets 2024
4340
Primary steel alloy
for gear struts
AMS 6359 / MIL-S-5000
±0.0005"
Critical bore
tolerance capability
RivCut capability
280 ksi
Tensile strength
of 300M steel
AMS 6417
On-Demand Capabilities

Precision CNC Machining for Landing Gear Systems

Landing gear components absorb the full weight of the aircraft on every touchdown. A gear strut bore that's 0.002" out of round or a trunnion fitting with a mislocated pin hole creates a safety risk. We machine 4340 steel, 300M steel, and titanium 6Al-4V landing gear parts with bore tolerances to ±0.0005", surface finishes to 16 Ra on bearing surfaces, and full hardness and material traceability on every part.

1

High-Strength Steel Expertise

4340 and 300M steels are hard to machine. We use rigid setups, carbide tooling, and controlled feed rates to hold tight tolerances on these demanding alloys without work hardening.

2

Critical Bore Precision

Pin joints, trunnion bores, and actuator cylinders demand excellent roundness and surface finish. We bore and hone to ±0.0005" with roundness within 0.0002" on every critical bore.

3

Full Material Traceability

Every landing gear part ships with mill certs, heat lot numbers, heat treat records, and hardness test results. Documentation follows AS9100D supplier standards.

What We Machine

Landing Gear & Actuation Components

Gear struts, torque links, actuator bodies, hydraulic manifolds, and trunnion fittings.

Gear Struts

Main and nose landing gear struts machined from 4340 and 300M steel. Precision bore holes for axle pins, lubrication passages, and mounting interfaces. Critical bores held to ±0.0005" with surface finish to 16 Ra on bearing surfaces.

4340 / 300M Steel | ±0.0005" bores

Torque Links

Upper and lower torque link halves machined from 4340 steel and titanium 6Al-4V. Close-tolerance bore holes for the scissors pin, precise lug geometry, and fatigue-critical radii. Hardness tested per drawing callout.

4340 Steel | Pin bore critical

Actuator Bodies

Hydraulic and electro-mechanical actuator bodies machined from 7075-T6 aluminum and 15-5 PH stainless. Precision cylinder bores with honed surfaces for seal compatibility. Port threads and mounting interfaces held to ±0.001".

15-5 PH | Honed bores

Hydraulic Manifolds

Landing gear hydraulic manifold blocks machined from 7075-T6 aluminum and 15-5 PH stainless steel. Cross-drilled passages, O-ring grooves, valve seat bores, and port positions verified on CMM. All internal passages deburred.

Al 7075-T6 | Cross-drilled

Trunnion Fittings

Landing gear trunnion fittings machined from 4340 steel and titanium 6Al-4V. Critical bore diameters for pivot pins held to ±0.0005" with concentricity within 0.001". Fatigue-critical radii blended per drawing spec.

Ti 6Al-4V | Concentricity critical

Side Brace & Drag Brace Links

Side brace and drag brace links machined from 4340 steel and 7075-T6 aluminum. Dual-bore link geometry with precise center distances, lug thicknesses, and bearing surfaces. Every critical dimension CMM verified.

4340 Steel | Dual-bore links
Landing Gear Ecosystem

Built for Landing Gear Programs

Every commercial and military aircraft depends on landing gear systems engineered for millions of cycles of takeoff and landing loads. Main gear struts on a wide-body airliner handle impact loads exceeding 500,000 pounds.

The landing gear supply chain requires machined parts from high-strength steels and titanium alloys with tight bore tolerances, verified hardness, and full material traceability. Tier 1 and Tier 2 suppliers need shops that can machine these demanding materials and deliver inspection-ready parts on schedule.

Whether you're building prototype actuator bodies for a new gear design or supplying production torque links for an active program, we machine landing gear components with the precision and documentation your program demands.

Safran Landing Systems

The world's largest landing gear OEM, Safran designs and manufactures gear systems for Boeing 737/787, Airbus A320/A350, and military platforms. Their supply chain depends on hundreds of machined detail parts per gear set.

Collins Aerospace Landing Systems

Collins Aerospace supplies landing gear for military fighters, business jets, and regional aircraft. Gear struts, actuators, and brake assemblies all require precision-machined steel and titanium components.

Heron Landing Gear (Triumph Group)

Heron manufactures landing gear for military and commercial applications including the C-130 Hercules. Their programs require machined fittings, links, and actuator components from high-strength steel alloys.

Liebherr Aerospace Landing Gear

Liebherr supplies landing gear systems for the A380, Embraer E-Jets, and military helicopters. Precision actuator bodies, manifolds, and trunnion fittings are sourced from machine shops across the US.

Why RivCut

Built for High-Strength Steel & Titanium

Landing gear parts demand rigid setups, tight bores, and full traceability on every part.

Rigid Setups for Hard Metals

4340 and 300M steels demand massive clamping force and zero deflection. We use rigid fixturing, short tool lengths, and conservative depth-of-cut strategies to hold tight tolerances in steels up to 280 ksi tensile strength.

Bore & Hone Capability

Actuator cylinders and gear strut bores require ±0.0005" diameter tolerance with 16 Ra surface finish and roundness within 0.0002". We bore and hone in-house so your parts meet seal and bearing specs.

Hardness & Heat Treat Verification

Landing gear steel parts require verified hardness after heat treatment. We coordinate heat treat and verify Rockwell hardness on every part per drawing callouts. Results documented and shipped with the part.

Full Landing Gear Documentation

Every part ships with CMM reports, material certs, heat lot traceability, heat treat records, and hardness test results. AS9100D-aligned documentation your quality team can drop straight into the program file.

Certifications & Standards
In Progress
AS9100D
Aerospace quality management. We're building our QMS to this standard. Our documentation follows the structure now.
Active
NIST-Traceable Gauges
All measuring equipment is calibrated to NIST standards on regular cycles. CMM, micrometers, and gauges.
Active
Material Certifications
Every order ships with mill certs and heat lot traceability. Records kept for your audit trail.
Planned
NADCAP
National Aerospace and Defense Contractors Accreditation Program. On our roadmap for heat treat and surface finishing.

Questions about our current quality setup? Email us — we'll send our documentation package.

How It Works

From File to Part in 3 Steps

Simple, clear, and designed for fast-moving landing gear programs.

Step 1

Upload & Quote

Send your STEP or IGES file for your gear strut, torque link, or actuator body. Pick your steel alloy, quantity, and finish requirements. Our AI gives you a real price right away. We also run a free DFM check on every file.

Step 2

We Machine & Inspect

Your landing gear parts run on our CNC mills and lathes with rigid setups optimized for high-strength steels. Every order gets CMM inspection on bore diameters, concentricity, surface finishes, and critical dimensions.

Step 3

Ship with Full Docs

Parts ship with dimensional inspection reports, material certs with heat lot traceability, heat treat records, and hardness test results. Everything your quality team needs for landing gear component acceptance and program records.

More Aerospace

Explore Other Aerospace Parts

We machine parts for every corner of the aerospace market.

Aircraft Structural Components

wing ribs, fuselage frames, bulkheads, spars

Avionics & Electronics Enclosures

radio enclosures, LRU housings, mounting trays

Engine & Turbine Parts

compressor blades, turbine discs, engine cases

Satellite & Space Hardware

optical benches, antenna mounts, propulsion brackets

UAV / Drone Airframes

airframe frames, motor mounts, gimbal arms
FAQ

Questions About Landing Gear Parts

We machine 4340 steel, 300M steel, titanium 6Al-4V, 7075-T6 aluminum, and 15-5 PH stainless for landing gear parts. 4340 and 300M are preferred for high-strength gear struts and torque links. Titanium 6Al-4V is used for weight-critical fittings. All material ships with certified mill certs and heat lot traceability.
We hold ±0.0005 inches on critical bore diameters for landing gear pin joints and trunnion bores. General features are held to ±0.001 inches. Surface finish on bearing surfaces is typically 32 Ra or better. Every bore is CMM inspected with roundness and concentricity verified.
Yes. 300M is a high-strength alloy steel used extensively in main landing gear struts. It requires carbide or ceramic inserts, rigid setups, and controlled feed rates to maintain dimensional accuracy. We machine 300M in both the pre-heat-treat and post-heat-treat conditions, with tolerances held through the full process.
Yes. We machine hydraulic manifold blocks from 7075-T6 aluminum and 15-5 PH stainless steel. Cross-drilled passages, O-ring grooves, and valve seat bores are held to tight tolerances. We deburr all internal passages and verify port positions on our CMM before shipping.
We offer as-machined (125 Ra or better), ground finishes to 16 Ra on bearing surfaces, cadmium plating per QQ-P-416, chrome plating per AMS 2406, and passivation for stainless steels. Landing gear parts typically require cadmium or chrome plating for corrosion and wear resistance. Tell us your spec — we'll coordinate finishing.
Yes. Actuator cylinder bores require excellent roundness, cylindricity, and surface finish for proper seal function. We bore and hone actuator bodies to ±0.0005 inches with roundness within 0.0002 inches and surface finish of 16 Ra or better. Every bore is verified on our CMM.
Yes. Every landing gear part ships with full material traceability — mill certs, heat lot numbers, and heat treat records. For 4340 and 300M steel parts, we also provide hardness test results per drawing requirements. Documentation follows AS9100D supplier standards.
Most landing gear prototype parts ship in 7 to 10 business days, depending on material availability and complexity. Simple fittings in aluminum can ship in 5 days. Steel parts requiring heat treatment may need 10 to 14 days. Tell us your deadline — we'll confirm what's possible.
Browse by City

Landing Gear Machining by City

We serve landing gear teams in cities across the US.

San Jose, CA Houston, TX Boston, MA Detroit, MI Minneapolis, MN
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Gear struts, torque links, actuator bodies, hydraulic manifolds — we machine them all from high-strength steel and titanium. Get instant AI pricing now.

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No minimums · 100% Made in USA · Never brokered · Ships anywhere in the US

AI price estimates are usually within ±20% of final price. Complex parts may get a human review within one business day before pricing is confirmed.

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