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ENEnglish繁中繁體中文ESEspañolARالعربيةFRFrançaisITItalianoPTPortuguêsRUРусскийDEDeutschJA日本語VITiếng ViệtKO한국어THไทยTRTürkçe

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Engineering Calculator · 095

Spanner Swing Clearance Calculator

Calculate swing chord for an entered handle length and rotation angle, then compare handle radius with available space.

Installation planning
Start calculationReview the method

Live calculation

Enter the known values.

Units remain visible beside every field and result. Change any input to recalculate immediately in your browser.

01

Inputs

02

Results

Handle-tip swing chord150mm
Required handle radius150mm
Radial space margin30mm

Formula
Cswing=2Lwsin⁡ ⁣(θs2)C_{\mathrm{swing}}=2L_w\sin\!\left(\frac{\theta_s}{2}\right)

The calculation runs locally in this browser. Values are not submitted or stored by this tool.

Direct answer

What this result means

Calculate swing chord for an entered handle length and rotation angle, then compare handle radius with available space. The relationship Chord = 2L sin(θ/2) ties effective spanner handle length, required swing angle and available radial space directly to the reported result. The handle rotates in one unobstructed plane about the fastener centre. Treat the value as a transparent preliminary calculation, then compare it with the actual cable-entry assembly and current product documentation.

Spanner Swing Clearance Calculator engineering relationship diagramChord = 2L sin(θ/2) defines the calculation shown here. The handle rotates in one unobstructed plane about the fastener centre. Keep the entered units with the result so another reviewer can reproduce the method. This dedicated schematic represents spanner swing clearance and is not to scale.TOOL SWING · TOOL 095Effective spanner handle l…Handle-tip swing chord
Calculator-specific engineering relationship diagram — schematic, not a product drawing, and not to scale.

Formula & theory

Make the assumptions visible.

Chord = 2L sin(θ/2) defines the calculation shown here. The handle rotates in one unobstructed plane about the fastener centre. Keep the entered units with the result so another reviewer can reproduce the method.

Calculation relationship
Cswing=2Lwsin⁡ ⁣(θs2)C_{\mathrm{swing}}=2L_w\sin\!\left(\frac{\theta_s}{2}\right)

Chord = 2L sin(θ/2) defines the calculation shown here. The handle rotates in one unobstructed plane about the fastener centre. Keep the entered units with the result so another reviewer can reproduce the method.

Variables

LEffective spanner handle lengthmm
θRequired swing angle°
RavailableAvailable radial spacemm
ChordHandle-tip swing chordmm
RrequiredRequired handle radiusmm

Use sequence

From measurement to review

  1. Confirm effective spanner handle length and required swing angle from a controlled drawing, measurement or project document.
  2. Apply Chord = 2L sin(θ/2) with consistent units and keep the entered values beside the result.
  3. Use handle-tip swing chord only after checking tool-head size, handle thickness, approach angle, ratchet increment and nearby components.

Limits

What this calculation does not confirm

  • The handle rotates in one unobstructed plane about the fastener centre.
  • Inputs describe one defined operating or measurement condition and use mutually consistent units.
  • The result does not by itself confirm product suitability, standards compliance, ingress performance or installation approval.

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Calculator FAQ

Use the number without losing the engineering context.

These answers clarify what the tool calculates and where a product-specific review still begins.

01Calculator guidanceHow does the spanner swing clearance calculator calculate handle-tip swing chord?

The tool applies Chord = 2L sin(θ/2) to effective spanner handle length, required swing angle, available radial space. The handle rotates in one unobstructed plane about the fastener centre. Keep the displayed units with the result so the calculation can be repeated.

02Calculator guidanceWhat does handle-tip swing chord show for this tool swing review?

Calculate swing chord for an entered handle length and rotation angle, then compare handle radius with available space. It is a preliminary engineering value, not confirmation of a cable-gland model, standards compliance or installation approval.

03Calculator guidanceWhat should be checked about tool-head size before using the spanner swing clearance calculator result?

The equation does not model tool-head size, handle thickness, approach angle, ratchet increment and nearby components. Confirm those conditions against the actual cable-entry assembly, applicable requirement and current product documentation.

Product selection support

Connect the calculation with cable-entry product options.

Bepto Cable Glands can help relate a preliminary result to the product family and current model information for your application. You can start with the details you have; a complete drawing package is not needed to ask a question.

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