RobustMotion RM-EGB Series 24VDC Compact Finger Gripper, 20D, PNP + RS-485 Interface

SKU: POLOLU-5406 Brand: Pololu
This gripper fits small cobots such as the Dobot MG400. The simple PNP-type PLC interface can connect directly to the MG400 I/O ports, and it can be...
Special Price $749.46 AUD, inc GST
Regular Price $912.99 AUD, inc GST
$681.33 AUD, exc GST
Special pricing ends 16 June 2025
* this special may end earlier than shown

Available with a lead time
Expect dispatch between Mar 24 and Mar 26

- +

0 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

Shipping:

  • $7+ Standard (5+ days*, tracked)
  • $11+ Express (2+ days*, tracked)
  • FREE Pickup (Newcastle only - must order online*)

Shipping costs may increase for heavy products or large orders.

Exact shipping can be calculated on the view cart page.

*Conditions apply, see shipping tab below.

The compact RM-EGB Series grippers from RobustMotion operate by sliding a pair of fingers together or apart laterally to grip and release. These fingers, which are designed to serve as mounting points for customized (e.g. 3D-printed) extensions, are able to exert consistent force in both directions, allowing them to grab parts internally (by opening into a gap) or externally (by clamping down) with missed pickup and dropped part detection.

Size comparison of the RobustMotion RM-EGB Series 16D (left) and 20D (right) Grippers.

These grippers are available in two different sizes and each size is available with or without an RS-485 interface (see comparison table below). They fit small collaborative robots (cobots) such as the Dobot MG400, and operate at 24 VDC, which can be supplied from the MG400. The simple PNP-type PLC interface can connect directly to the MG400 I/O ports. A simple 3D-printed adapter (139k STEP) can be used to mount a gripper to the MG400 arm.

RobustMotion RM-EGB gripper:
#5403:
16D, simple PNP

#5404:
16D, PNP + RS-485

#5405:
20D, simple PNP

#5406:
20D, PNP + RS-485
PNP-type PLC interface:
RS-485 Modbus RTU interface:
Rated Voltage: 24 V (±10%)
Rated Current: 0.3 A 0.4 A
Peak Current: 0.6 A 0.8 A
Max. gripping force: 60 N
(±15%)
80 N
(±15%)
Stroke: 6 mm 10 mm
Repeat positioning accuracy: ±0.02 mm
Max. opening/closing time: 0.1 s 0.18 s
Size: 23.5 × 38 × 98 mm 27.6 × 50 × 108 mm
Weight: 220 g 320 g
Protection Class: IP40
Price:


Details for item #5406

This is the larger of the two available gripper sizes, with a max stroke of 10 mm (both fingers combined) and a maximum gripping force of 80 N. It supports Modbus RTU over RS-485 (in addition to the PNP-type PLC interface).

The gripper can cover its full 10 mm stroke length in under 0.18 s. In addition to the fully open and fully closed extremes, the simple PNP-type PLC interface offers two preset intermediate positions (at 4 mm and 8 mm) that are achievable with ±0.02 mm repeatability, and the grip strength can be controlled by selecting from four preset force levels up to 80 N. The RS-485 interface gives more precise control of the position (0% to 100%) and force (25% to 100%). See the RM-EGB user’s manual (2MB pdf) for more information.

  • RobustMotion part number: RM-EGB-06L-20D-1-D0200-PRTU
  • 3 PNP inputs and 3 PNP outputs for direct connection to a PNP-type PLC:
    • Four preset stroke positions: 0, 4, 8, and 10 mm
    • Four preset gripping force levels: 25%, 50%, 75%, and 100%
  • RS-485 interface:
    • Full position control from 0% to 100%
    • Force levels from 25% to 100%
  • Operating voltage: 24 VDC
  • Peak current: 0.8 A
  • Maximum gripping force: 80 N
  • Maximum stroke length: 10 mm
  • Repeat positioning accuracy of ±0.02 mm
  • Maximum opening/closing time: 0.18 s over the full 6mm range
  • Capable of gripping internally or externally with consistent force output and detection of missed pickup/dropped part
  • Size: 27.6 × 50 × 108 mm (1.09" × 1.97" × 4.25")
  • Cable length: 200 cm (75")
  • Weight: 320 g (390 g including the cable)

Dimensions

Dimensions (in mm) of the RobustMotion RM-EGB Series 20D Gripper.

Connections

The grippers have a 200 cm (80") cable with ten conductors terminating in a 12-pin, 2mm-pitch A2008H-12P connector. RobustMotion recommends cutting the connector off and using the individual wires.

Dimensions

Size: 27.6 × 50 × 108 mm (1.09" × 1.97" × 4.25")
Weight: 320 g1

General specifications

Interface: simple PNP + RS-485
Voltage: 24 V
Lead length: 200 cm
Version: 20D

Notes:

1
390 g including cable.

File downloads

This product is listed in:

Components & Parts>Linear Actuators>Others

Product Comments

Exact shipping can be calculated on the view cart page (no login required).

Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

  • $3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
  • $7+ for Standard Post (typically 6+ business days, tracked)
  • $11+ for Express Post (typically 2+ business days, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $12+ for Pack and Track (3+ days, tracked)
  • $16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

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