NICE / APOLLO ABOX35, ASSEMBLY, COMPLETE ARM FOR 3500 OPERATOR
The NICE Apollo ABOX35 is the complete arm assembly for the Apollo Vanguard 3500 / 3501 swing gate operator family. On these operators, the arm assembly is the main moving mechanical link between the motor chassis and the gate leaf. When the arm is worn, bent, loose, or incorrectly adjusted, the gate may bind, move unevenly, stop before reaching full travel, or place extra load on the operator.
This part is best treated as a Vanguard-specific mechanical assembly, not a universal swing gate arm. The 3500 / 3501 style system uses an articulating arm arrangement that differs from linear actuator systems such as Apollo 816, 912L, or Titan arms. Before replacing the full assembly, compare the installed arm, gate attach bracket, primary arm, secondary arm, adjustable arm, insert collar, and mounting points to the parts diagram.
Compatible With
This compatibility list is written for practical parts-counter use. Match the installed operator model, controller, harness length, receiver family, or parts diagram before ordering when the system has been repaired or upgraded in the past.
- NICE Apollo Vanguard 3500 swing gate operator arm assembly applications
- NICE Apollo Vanguard 3501 swing gate operator applications where ABOX35 is specified
- Apollo 3500 and 3600 arm assembly references where the installed parts diagram matches ABOX35 or ABOX350
- O-35-1 and O-35-2 chassis/arm service contexts only when the kit includes or calls for ABOX35
- Related ABOX350 listings for Vanguard 3500 / 3600 arm assembly references
- Not compatible with Apollo 816, 912L, Titan, or standard linear actuator arms
Features and Specifications
| Manufacturer | NICE Apollo |
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| Product Type | Complete Swing Gate Arm Assembly |
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| Part Number | ABOX35 |
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| Common Related Listing | ABOX350 |
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| Application | Vanguard 3500 / 3501 articulating swing gate operator arm |
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| Operator Type | Articulating arm swing gate operator |
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| Included Components | Complete arm assembly as stocked; confirm included hardware by inventory package |
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| Notes | Match Vanguard operator family and gate geometry before ordering |
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Also Known As / Related Part Numbers
- ABOX35
- ABOX350
- Apollo ABOX35
- Nice ABOX35
- O-35-1 - related primary chassis kit reference
- O-35-2 - related secondary chassis kit reference
- 10021790 - adjustable arm assembly reference
- 10031390 - secondary arm reference
- 10045990 - primary arm reference
- 10045790 - insert collar reference
- 10025215 - gate bracket reference
- 3500AAA - adjustable aluminum arm reference
Technician Note
If an ABOX35 arm failed from gate bind or impact, inspect the gate hinges, column/pivot mounting, stops, and bracket geometry before installing the replacement. A new arm will not correct a gate that is sagging, dragging, or over-traveling.
Before Ordering
- Confirm the installed operator is a Vanguard 3500 / 3501 style articulating swing operator
- Compare the existing arm assembly to the ABOX35 / ABOX350 parts diagram
- Inspect gate hinges, stops, and mounting brackets for damage before replacement
- Confirm whether the job needs the full arm assembly or only an individual arm, collar, or bracket
- Do not substitute this part for a linear actuator arm
Important Ordering Warnings
- ABOX35 is not the same as Apollo 816, 912L, Titan, or linear actuator arms
- Incorrect arm geometry can overload the operator or limit gate travel
- Heavy gate mechanical repairs should be performed by a qualified gate technician
Professional Advisory
For electrical diagnosis, controller replacement, or any unsafe gate movement, use a qualified gate technician. Do not bypass required safety devices or operate a gate system with missing, damaged, or improperly wired protection devices.
Product Questions and Answers
What operator does the ABOX35 arm fit?
ABOX35 is commonly associated with NICE Apollo Vanguard 3500 / 3501 style articulating swing gate operators.
Is ABOX35 the same as ABOX350?
ABOX350 appears as a related listing reference for the Vanguard 3500 / 3600 arm assembly. Match the installed parts diagram and stocked item label.
Can I use this on an Apollo 816 or Titan actuator?
No. ABOX35 is an articulating arm assembly for Vanguard-style operators, not a linear actuator replacement arm.
When should the full arm assembly be replaced?
Replace the full assembly when the arm is bent, badly worn, damaged from impact, missing key parts, or no longer maintains proper gate movement.
What else should be checked during replacement?
Check gate hinges, stops, bracket locations, arm adjustment, insert collars, and the operator chassis before returning the gate to service.
