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No.000041 Pallet Transfer Anti-reversing Mechanism
Good IDEA!
97

Feed fingers prevent pallets from reverse flowing

Relevant category

Cylinder with guides

Cylinder with guides
Product name Cylinders with Twin Guides
Part number MGCLF16-20
Features Cylinders having the guides on both ends for usability.
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria | Available sizes | Accuracy Info | Performance info.

Selection criteria

Compact size and allowable lateral load.

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Available sizes

■Cylinder with guides (Fixed stroke type)

Tube
I.D. 		Bearing Plain Bushing Linear Ball Bushing Cylinder
Width 		Overall length
(Below+St) 		Thickness
St 10 20 25 30 40 50 75 100 10 20 25 30 40 50 75 100
φ12 ○ ○ － ○ ○ ○ ○ ○ ○ ○ － ○ ○ ○ ○ ○ 56 39 22
φ16 ○ ○ － ○ ○ ○ ○ ○ ○ ○ － ○ ○ ○ ○ ○ 62 43 25
φ20 － ○ － ○ ○ ○ ○ ○ － ○ － ○ ○ ○ ○ ○ 72 47 30
φ25 － ○ － ○ ○ ○ ○ ○ － ○ － ○ ○ ○ ○ ○ 86 47.5 38
φ32 － － ○ － － ○ ○ ○ － － ○ － － ○ ○ ○ 112 48
φ50 － － ○ － － ○ － ○ － － － － － － － － 146 72 60

*Sensor sold separately

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Accuracy Info

■Non-Rotational Accuracy

Non-Rotational Accuracy: A deviation angle centered on the piston rod, expressing the backlash caused by the clearance between the guide rod and the bearing.

Tube
I.D. 		Non-rotating accuracy of tip link bar
Plain Bushing Linear Bushing
φ12 ±0.12° ±0.06°
φ16 ±0.10° ±0.06°
φ20 ±0.09° ±0.05°
φ25 ±0.08° ±0.05°
φ32 ±0.06° ±0.04°
φ50 ±0.05° －

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Performance info.

■Guided cylinder usage pressure range

Min. pressure(MPa)：　0.1
Max. pressure(MPa)：　1.0
Proof pressure(MPa)：　1.5

■Theoretical thrust

(N)

Tube
I.D. 		Actuating
direction 		Operating pressure (MPa)
0.4 0.5
φ12 Push 45 57
Pull 34 42
φ16 Push 80 101
Pull 60 75
φ20 Push 126 157
Pull 94 118
φ25 Push 196 245
Pull 151 189
φ32 Push 322 402
Pull 241 302
φ50 Push 785 982
Pull 660 825

■Allowable rotational torque

The following shows the dynamic allowable value with rotational torque T applied to the tips of the guide rods.

(N･m)

Tube
I.D. 		Bearing
type 		Stroke
10 20 25 30 40 50 75 100
φ12 Plain Bushing 0.50 0.40 - 0.33 0.28 0.25 0.77 0.65
Linear bushing 0.41 0.31 - 0.25 0.69 0.59 0.40 0.32
φ16 Plain Bushing 0.91 0.75 - 0.64 0.56 0.49 1.25 1.06
Linear bushing 0.76 0.60 - 0.49 1.14 1.02 0.79 0.65
φ20 Plain Bushing - 1.43 - 1.23 1.08 0.96 1.51 1.27
Linear bushing - 1.12 - 0.93 2.12 1.90 1.50 1.24
φ25 Plain Bushing - 2.26 - 1.94 1.71 1.52 2.38 2.00
Linear bushing - 1.98 - 1.65 3.75 3.37 2.68 2.22
φ32 Plain Bushing - - 6.71 - - 5.24 4.30 3.64
Linear bushing - - 3.61 - - 2.55 6.48 5.41
φ50 Plain Bushing - - 13.0 - - 10.8 - 10.6

■ Allowable lateral load

The following shows the dynamic allowable values with lateral load W (load perpendicular to the guide rod) applied to the tips of the guide rod.

（N)

Tube
I.D. 		Bearing
type 		Stroke
10 20 25 30 40 50 75 100
φ12 Plain Bushing 24 19 - 16 14 12 37 31
Linear bushing 20 15 - 12 33 29 19 16
φ16 Plain Bushing 40 33 - 28 24 21 55 46
Linear bushing 33 26 - 21 50 44 34 28
φ20 Plain Bushing - 52 - 45 39 35 55 46
Linear bushing - 41 - 34 77 69 54 45
φ25 Plain Bushing - 69 - 60 52 47 73 62
Linear bushing - 61 - 51 115 104 82 68
φ32 Plain Bushing - - 166 - - 131 107 91
Linear bushing - - 90 - - 34 162 135
φ50 Plain Bushing - - 296 - - 245 - 241

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Feed Finger

Feed Finger
Product name Feed Fingers
Part number ATBST10B-S-BTS
Features Applicable for Pallet Back-Feed Prevention of Carrier Line
* Orange colored cells in the table below indicate the part numbers used in this example.
Selection criteria | Risk info. | Available sizes | Mechanism Info. | Performance info.

Selection criteria

Suitable for approx. positioning of pallets

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Risk info.

Premature claw wear

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Available sizes

Feed Finger

●Claw specifications

Material Surface treatment Hardness Straight Round
Width 7 10 14 20 28 7 10 14 20 28
1018 Carbon Steel Electroless nickel plating Carburizing (Depth 0.1)HV400-500 ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
304 Stainless Steel − − - ○ - - - - ○ - - -
Tufftride Tufftride(Depth 0.01)HV1000 - ○ - - - - ○ - - -
MC Nylon − − ○ ○ ○ - - ○ ○ ○ - -

● Body·Pin specifications

Body Pin
Material Surface treatment Shape Claw width(Straight/Round) Material Surface treatment
7 10 14 20 28
1018 Carbon Steel Electroless
nickel
plating 		Side holes
(Screw holes) 		○ ○ ○ - - 1045 Carbon Steel Electroless
nickel
plating
Side holes
(Through holes) 		- ○ ○ - -
Side holes
(Tapped) 		○ ○ ○ - -
Bottom
mount 		○ ○ ○ ○ ○
π shape ○ ○ ○ ○ ○
304 Stainless Steel − Side holes
(Bolt) 		- ○ - - - 303 Stainless Steel −
Side holes
(Through holes) 		- ○ - - -
Side holes
(Tapped) 		- ○ - - -
Bottom
mount 		- ○ - - -
π shape - - - - -

●Spring specifications

Material Spring type
304 Stainless Steel Soft, Hard

■Dimensions

Claw material Claw width Claw shape Spring
Type 		Body shape Body width Overall height Body height Body length Stroke
Max. Min.
1018 Carbon Steel、
MC Nylon 		7 Straight·
Round 		Soft·
Hard 		Side holes(Screw) 12 29 22.5 30
(Short) 		5 3
Side holes(Tapped)
Bottom mount
π shape 20.5 14
7 Side holes(Through holes) 12 38 31 40
(Standard) 		5 3
Side holes(Tapped)
Bottom mount
π shape
1018 Carbon Steel、 304 Stainless Steel、MC Nylon 10 Side holes(Through holes) 19 38 31 40 5 3
Side holes(Through holes)
Side holes(Tapped)
Bottom mount
π shape
14 Side holes(Through holes) 25 55.5 43 55 10 5
Side holes(Through holes)
Side holes(Tapped)
Bottom mount
π shape 66.5 54
1018 Carbon Steel 20 Bottom mount 38 63 49 65 10 5
π shape 78 64
28 Bottom mount 50 83 64 80 12 7
π shape 101 82

＊Please check with product pages for claw, body shape details, detailed dimensions, and material.

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Mechanism Info.

■Feed finger structural diagram

Key Name Qty.
① Claw 1
② Spring 1
③ Body 1

It has a pivoted claw. When a pallet passes over the top, the claw returns by a spring, preventing reverse traveling of the pallet.

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Performance info.

■Spring load of Feed Finger (N)

Claw
(Straight/Round) 		Spring type Set Stroke3 Stroke5（7） Stroke10（12）
Width Body Spring
top section 		Claw tip Spring
top section 		Claw tip Spring
top section 		Claw tip Spring
top section 		Claw tip
7 Short Soft 0.4 0.3 1.1 0.7 1.5 1.0 - -
Hard 1.4 1.0 2.4 1.6 2.9 2.0 - -
7 Standard Soft 0.3 0.2 1.0 0.7 1.5 1.0 - -
Hard 1.7 1.1 2.6 1.7 3.1 2.1 - -
10 - Soft 0.3 0.2 1.0 0.7 1.5 1.0 - -
Hard 1.8 1.2 2.6 1.7 3.2 2.1 - -
14 - Soft 0.9 0.7 1.3 1.1 1.7 1.3 2.4 1.9
Hard 2.6 2.1 3.1 2.5 3.5 2.8 4.3 3.5
20 - Soft 2.3 1.8 - - 3.0 2.4 3.8 3.0
Hard 3.6 2.8 - - 4.5 3.5 5.5 4.3
28 - Soft 3.7 2.6 - - 5.2 4.0 6.3 4.8
Hard 4.9 3.4 - - 6.7 5.2 8.0 6.2

＊Stroke 5·10 value for 28A, 28B will be stroke 7·12 respectively.

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IDEA NOTE Prevent pallet looseness.

By using a feed finger with a round claw, the feed finger and pallet can be placed closer with each other, minimizing play.

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Application Overview

Purpose

  • Prevent pallets from reverse flowing.

Target workpiece

  • Plastic case size: W120 x D220 x H20 mm
  • Pallet size: W218 x D300 x t12 mm (Aluminum)
  • Weight of transferred object: 2.3kg/pc.

Design Specifications

Operating Conditions or Design Requirements

  • Conveyor size: W283 x D1270 x H185 mm
  • Transfer speed: 150mm/s
  • Stopper cylinder stroke: 20 mm

Required Performance

  • Pallet positioning accuracy: ±0.5 mm

Selection Criteria for Main Components

  • Two row type conveyor is selected since the cylinder and feed fingers are located below the transfer surface.

Design Evaluation

Verification of main components

  • Verify that the plastic chain conveyor can withstand the workpiece load.
  • Plastic chain conveyor
    • Transferred weight: 2.3kg x 3pcs. (max.) = 6.9kg
    • Transfer speed: 150mm/s = 9m/min
    • Based on conveyor transferability graph above conditions fall within the range for 25W conveyor.

Other Design Consideration

  • A stopper with a cylinder is placed at the fore direction of travel. Pallet reverse flowing is prevented by a feed finger located at the back.
  • If scratching the pallets is a concern, use feed fingers with Nylon claws.

Explore Similar Application Examples

Page - / -

Part List

No. Part Name Sample Picture MISUMI Part Number
(click the Part Number below for details) 		Quantity
1 Plastic Chain Conveyors CVSPA-200-1200-25-S200-IM-25-D-B 1
2 Engineering Resin Rails NLBB5-15-1000-H4-P300-ZN4-LCC10 1
3 Extra Low Head Cap Screws CBSM4-10 8
4 Engineering Resin Rails NLBB5-15-1000-H4-P300-ZN4-RCC10 1
5 Air Cylinders With Twin Guides MGCLF16-20 2
6 Feed Fingers ATBST10B-S-BTS 2
7 Sensors for Air Cylinders MD13L1 2
8 Flow Rate Control Valves SPSNL6-M5 2
  • The part list above only contains MISUMI parts.
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    1. Purpose of Use
    MISUMI offers the following:
    1)CAD data found on the Website (3D CAD data, 3D Intermediate data and 2D CAD data) for the purpose of informing customers of the characteristics of the products offered by MISUMI or a manufacturer affiliated with MISUMI for use in their designs.
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    There may be a discrepancy in certain characteristics of products (for example: tolerance, surface roughness, chamfer, etc.) between the Data and the actual product. Furthermore, for the purpose of reducing the file size of the Data, some information such as oil groove shapes, threads, or spring shapes, may be removed from the Data.
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    These Terms and any disputes arising in connection therewith shall be exclusively governed by and construed in accordance with the laws of Thailand, without regard to its conflicts of law principles. The authorized courts in Thailand shall have exclusive jurisdiction to adjudicate any dispute arising in connection with these Terms.

    Revised: 16th November, 2025

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