HySecurity MX000299, LIMIT CAM, 1.25", SA
HySecurity MX000299 is a 1.25 inch limit cam for select HySecurity StrongArm barrier gate operator applications. HySecurity parts documentation lists MX000299 as "Limit Cam" for StrongArm models, and current listings describe it as "LIMIT CAM, 1.25", SA."
The limit cam is part of the StrongArm travel/limit position hardware. Because limit-related parts can affect where the barrier arm stops in the open and close positions, this part should be selected only after confirming the operator model, serial number, original cam, cam size, shaft condition, limit switch area, and HySecurity parts diagram.
What This Limit Cam Does
The limit cam works with the StrongArm limit switch area to help establish operator travel reference points. As the arm drive moves, the cam interacts with the limit switch hardware so the operator can recognize where the arm should stop or change state, depending on the StrongArm configuration.
A worn, loose, cracked, mispositioned, or incorrect limit cam can contribute to arm overtravel, early stopping, failure to stop at the correct position, repeated limit switch issues, or difficulty setting open and close limits. Similar symptoms can also be caused by a failed limit switch, loose wiring, worn crankshaft components, a damaged bearing, loose keyway hardware, cylinder movement problems, controller setup issues, arm binding, or incorrect arm balance.
Compatible With
Use HySecurity MX000299 only where the operator parts diagram, original limit cam, or HySecurity documentation confirms this part number.
- Select HySecurity StrongArm barrier gate operator applications where MX000299 is listed as the limit cam.
- HySecurity StrongArm models where the parts diagram lists MX000299 for the limit cam location.
- StrongArm / SA repairs where the original limit cam is marked, listed, or cross-referenced as HySecurity MX000299.
- Applications where the 1.25 inch limit cam size, shaft location, and limit switch arrangement match the HySecurity parts diagram.
- Travel or stop-position repairs where diagnosis confirms the limit cam is worn, damaged, missing, or no longer secured properly.
Important Compatibility Warning
Do not order MX000299 based only on the words "limit" or "cam." This part is the limit cam, not the limit switch or limit switch kit. StrongArm models use several parts in the same mechanical and limit-control area, and those parts are not automatically interchangeable.
Limit cam position matters. If the cam is installed incorrectly, loose on the shaft, or paired with a damaged limit switch, the barrier arm may not stop where expected. Always verify the cam position and limit switch operation according to the operator service information after replacement.
Similar Parts That Are Not Automatically Interchangeable
- mx001777-limit-switch-for-strongarm-and-swingsmart-dc-gate-operators.html">HySecurity MX001777 - limit switch for StrongArm models; not the same as the limit cam.
- mx001872-limit-switch-assembly-strongarm.html">HySecurity MX001872 - limit switch kit for StrongArm models; not the same as the limit cam.
- mx001100-crankshaft-bearing-zerk-keys-strongarm.html">HySecurity MX001100 - crankshaft with bearing, zerk and keys; related drive component, not the limit cam.
- HySecurity MX000306 - 4-bolt crankshaft bearing; not the same as the limit cam.
- mx000077-2-inch-x-6-inch-cylinder-assembly-strongarm.html">HySecurity MX000077 - StrongArm cylinder assembly; not the same as the limit cam.
- mx000312-stainless-steel-cylinder-pin-strongarm.html">HySecurity MX000312 - cylinder pin; related linkage hardware, not the limit cam.
- mx002467-cylinder-anchor-eyebolt-nut-nord-lock-washers.html">HySecurity MX002467 - cylinder anchor eyebolt with Nord-Lock washers; not the same as the limit cam.
- Smart Touch controller components - may report limit or travel issues but are not the limit cam.
- Arm brackets, yokes, counterweights, and complete barrier arms - related StrongArm hardware but not interchangeable with MX000299.
Not Intended For
- Limit switch replacement.
- Limit switch kit replacement.
- Crankshaft, crank bearing, or key stock replacement.
- Hydraulic cylinder or cylinder pin replacement.
- Hydraulic hose, pump pack, manifold, or valve replacement.
- Side-mount arm bracket, yoke bracket, counterweight, or complete barrier arm replacement.
- StrongArm M30/M50, StrongArmPark, SwingRiser, HydraSwing, HydraLift, HydraWedge, SlideDriver, SlideSmart, SwingSmart, or WedgeSmart operators unless the parts diagram specifically lists MX000299.
- Repairs where the actual issue is controller setup, arm binding, limit switch failure, wiring damage, or incorrect arm balance.
Features & Specifications
| Feature / Specification | Details |
| Manufacturer | HySecurity / Nice HySecurity |
| Part Number | MX000299 |
| Product Type | Limit cam |
| Cam Size | 1.25 inch, based on current part description |
| Common Description | Limit Cam, 1.25 inch, SA |
| Common Application | Select HySecurity StrongArm barrier gate operator applications |
| Operator Family | StrongArm / SA where listed by parts diagram |
| Function | Works with limit switch hardware to support open/close travel reference points |
| Related Components | Limit switch, limit switch kit, crankshaft hardware, wiring, and controller setup should be checked during service |
| Package Contents | Verify current package contents before ordering; switches, fasteners, and related limit hardware may be separate unless stated |
Also Known As / Related Part Numbers
- MX000299
- HySecurity MX000299
- Nice HySecurity MX000299
- HYS-MX000299
- HYS-mx000299
- HySecurity limit cam
- HySecurity StrongArm limit cam
- HySecurity 1.25 inch limit cam
- Limit Cam, 1.25 inch, SA
- Limit Cam, StrongArm
- Limit Cam, StrongArm, Smart Touch Only
- MX001777 - related StrongArm limit switch; not the same part
- MX001872 - related StrongArm limit switch kit; not the same part
- MX001100 - related crankshaft assembly; not the same part
- MX000306 - related crankshaft bearing; not the same part
- MX000077 - related cylinder assembly; not the same part
Related Parts and Accessories
The correct related parts depend on the installed StrongArm model, limit switch arrangement, cam condition, and reason the arm is not stopping correctly. Inspect the full limit and drive area before ordering only the limit cam.
- MX001777 limit switch - related StrongArm limit switch, not the same as MX000299.
- MX001872 limit switch kit - related limit service kit, not the same as the limit cam.
- MX001100 crankshaft with bearing, zerk and keys - related mechanical drive part, not the limit cam.
- MX000306 4-bolt crankshaft bearing - related bearing support part, not the limit cam.
- MX000077 cylinder assembly - related hydraulic drive component, not the limit cam.
- MX000312 cylinder pin - related linkage hardware, not the limit cam.
- Controller and wiring components - inspect if limit faults remain after mechanical parts are verified.
Technician Note
Before replacing MX000299, inspect the cam, shaft, set screw or retaining hardware, limit switch arm/roller, wiring, crankshaft area, and controller limit response. A loose or misadjusted cam can mimic a failed limit switch, and a failed limit switch can mimic a bad cam.
If the barrier arm is overtraveling, stopping early, or failing to stop consistently, check the complete limit system before replacing parts. Arm binding, loose crankshaft hardware, worn bearings, cylinder movement issues, or incorrect setup can all affect where the arm stops.
Before Ordering, Confirm
- The required part number is MX000299.
- The operator is a HySecurity StrongArm / SA application where the parts diagram lists MX000299.
- The required cam size is 1.25 inch.
- The repair requires the limit cam, not the limit switch, limit switch kit, crankshaft, bearing, controller, or hydraulic cylinder.
- The cam mounting location, shaft condition, and retaining hardware match the original installation.
- The limit switch and wiring have been inspected for damage or misalignment.
- The arm is not binding, drifting, overbalanced, underbalanced, or damaged from impact.
- The package includes the expected limit cam and any needed retaining hardware, or related hardware is ordered separately if required.
Installation and Service Notes
- Secure the barrier arm before servicing limit or drive hardware.
- Disconnect and secure operator power before working near moving mechanical parts or limit switch wiring.
- Do not bypass limit switches or controller protections to keep the operator running.
- Install the cam in the correct position and orientation according to the service information.
- Verify the limit switch is being actuated correctly and is not damaged or misaligned.
- After service, cycle the barrier arm and confirm proper open and close stopping positions.
- Verify smooth arm travel, secure hardware, correct controller response, and all required safety devices.
Professional Advisory
StrongArm limit cam and travel-position repairs should be handled by a qualified gate technician when the repair involves heavy barrier arms, limit switch adjustment, crankshaft hardware, hydraulic movement, controller setup, arm balance, or unknown prior modifications. Do not bypass limit controls, stop circuits, kill switches, controller protections, access control safety inputs, or any required safety devices to keep the operator running.
Product Questions & Answers
What is HySecurity MX000299?
HySecurity MX000299 is a 1.25 inch limit cam for select HySecurity StrongArm barrier gate operator applications.
What operators use MX000299?
HySecurity parts documentation lists MX000299 as the limit cam for StrongArm models. Use it only where the operator parts diagram confirms this part number.
Is MX000299 the same as the limit switch?
No. MX000299 is the limit cam. The limit switch and limit switch kit are separate related parts that work with the cam.
Can a worn or loose limit cam cause the arm to stop in the wrong place?
Yes. A worn, loose, cracked, or mispositioned limit cam can cause early stopping, overtravel, inconsistent stopping, or limit switch actuation problems.
What should be checked before replacing the limit cam?
Check the cam, limit switch, switch wiring, retaining hardware, crankshaft area, arm movement, controller response, and arm balance before replacing only the cam.
Is MX000299 the same as the crankshaft?
No. MX000299 is the limit cam. The crankshaft assembly is a separate StrongArm drive component commonly listed as MX001100.
Should a technician set the limits after replacing this cam?
Yes. A qualified gate technician should verify cam position, switch actuation, open and close stopping positions, controller response, and safe barrier arm operation after replacement.
