Conveyor Safety Calculator

Guard placement and emergency stop spacing from OSHA/ANSI.

Conveyor length

Belt speed

m/s

Incline angle

Throughput

t/hr

Belt width

Number of pulleys

Walkways both sides

Head pulley diameter

Tab to move between fields

Emergency stops required

Nip point guards needed

E-stop spacing20 m

Guard extension from nip914 mm

Stopping distance7.25 m

Stopping time5.4 s

Backstop torque1,397.1 N·m

Pull cord length200 m

Belt drift switches5

Min overhead clearance2,000 mm

Lift Height8.72

Needs Zero Speed Switch1

Guard Cost Estimate$12,600.00

How to Use This Calculator

Enter conveyor belt speed and access guard-to-belt clearance dimensions.
Set nip point distance and emergency stop response time.
Input number of access points and conveyor length.
Review safety compliance scores and required stopping distance.
Use flagged deficiencies to prioritize guarding upgrades and meet OSHA 1910.217 requirements.

How the result changes with Conveyor length

Conveyor length: Total conveyor length.
Belt speed: Belt linear velocity for stopping calculations.
Incline angle: Belt incline for backstop torque calculation.
Throughput: Material flow rate for load calculations.
Belt width: Belt width.
Number of pulleys: Total pulleys (head, tail, snubs, bends). Each has nip points requiring guards.
Walkways both sides: 0 = one side only, 1 = walkways on both sides.
Head pulley diameter: Head (drive) pulley diameter for backstop calculation.

Emergency stops required: Number of e-stop stations per ANSI B20.1 (max 22.9m spacing).
E-stop spacing: Actual spacing between emergency stop stations.
Nip point guards needed: Total nip points requiring guarding (pulleys + accessible return idlers).
Guard extension from nip: Minimum guard reach from nip point per OSHA (36 inches).
Stopping distance: Belt travel from e-stop activation to full stop.
Stopping time: Time from e-stop activation to full stop.
Backstop torque: Required backstop (holdback) torque for inclined conveyors.
Pull cord length: Total emergency pull cord needed along accessible sides.
Belt drift switches: Number of belt alignment (drift) switches needed.
Min overhead clearance: Minimum walkway clearance under conveyor (OSHA).

Identify Input Parameters
4 parameters
Conveyor length = 100, Belt speed = 2.5, Incline angle = 5, Throughput = 500 = 8 input(s) provided
Calculate Emergency stops required
Emergency stops required
6 = 6
Calculate Nip point guards needed
Nip point guards needed
42 = 42
Calculate E-stop spacing
E-stop spacing = conveyorLength / max(1, numEStops - 1)
20 = 20
Calculate Guard extension from nip
Guard extension from nip
914 = 914