The Festo DHWS-16-A is a two-jaw angle gripper from the Festo DHWS series, Festo part number 1310178. Its jaws swing through a total opening angle of 40 degrees, 20 degrees each, and it produces a total gripping torque at 6 bar of 114 Ncm when closing and 129 Ncm when opening. Repetition accuracy is 0.04 mm, the gripper weighs 110 g and it runs on compressed air from 2 to 8 bar through M3 ports.
Because the jaws swing outwards rather than sliding apart, they clear the workpiece completely when the gripper opens. That is what you want when a part has to be released sideways, when the gripper must be pulled straight out of a fixture, or when a parallel gripper would collide with the surrounding tooling. The housing is hard-anodised wrought aluminium and the jaws are high-alloy steel.
Both sides of the body carry integrated sensor slots, so SMT-8G, SMAT-8M or SDBT-MSX proximity switches can report the open and closed positions to the PLC without adding width to the gripper.
This is the double-acting version, without a compression spring. Compressed air both opens and closes the jaws, which gives the full 2 to 8 bar working range and the fastest cycle, but the workpiece is released if the air supply is lost.
Technical specifications
| Brand | Festo |
|---|---|
| رقم صنف Festo | 1310178 |
| رمز الموديل | DHWS-16-A |
| Series | Festo DHWS |
| GTIN | 4052568229665 |
| Gripper type | Two-jaw angle gripper, self-centring |
| Size | 16 |
| Mode of operation | Double-acting |
| Opening angle | 40 deg total, 20 deg per gripper jaw |
| Total gripping torque at 6 bar, closing | 114 Ncm |
| Total gripping torque at 6 bar, opening | 129 Ncm |
| Repetition accuracy | 0.04 mm |
| ضغط التشغيل | 2 to 8 bar |
| Max. operating frequency | 4 Hz |
| Min. opening time at 6 bar | 44 ms |
| Min. closing time at 6 bar | 52 ms |
| Max. static force on gripper jaw Fz | 50 N |
| Max. static torque Mx, My, Mz | 1.6 Nm |
| Mass moment of inertia | 0.14 kgcm2 |
| وصلة الهواء | M3 |
| Ambient temperature | 5 to 60 degrees C |
| Operating medium | Compressed air to ISO 8573-1:2010 [7:4:4] |
| Position sensing | Via proximity switch |
| Mounting | Internal thread with centring sleeve, or through-hole with centring sleeve |
| Housing material | Wrought aluminium alloy, hard-anodised |
| Gripper jaw material | High-alloy steel |
| Corrosion resistance class | CRC 1 |
| Product weight | 110 g |
Dimensions
The dimension drawing for the whole Festo DHWS series, including size 16, is in the image gallery on this page. It is the official Festo drawing with all reference letters, so it can be used directly for designing the mounting interface and the gripper fingers. CAD models for DHWS-16-A are available from Festo, and we can send you the datasheet for part number 1310178 on request.
What the DHWS-16-A is used for
- Transferring parts between conveyors, fixtures and machines where the gripper must be pulled straight out
- Feeding blanks and finished parts in and out of presses and injection moulding machines
- Handling in tight tooling, where sliding jaws would collide with the surrounding structure
- Machine tending on assembly lines, packaging machines and test benches
- Gripping shafts, rings and cylindrical parts that must be released sideways
Choosing between DHPS, DHWS and DHRS
Festo builds three standard pneumatic gripper families and they are not interchangeable. DHPS parallel grippers slide both jaws in a straight line and hold the tightest repetition accuracy, 0.02 mm, which suits precise assembly. DHWS angle grippers swing each jaw out by 20 degrees so the part is cleared on release, which suits transfer between fixtures. DHRS radial grippers swing the jaws right back through 180 degrees, so the whole gripper can be withdrawn past the workpiece inside a tight machine.
A full side-by-side comparison of every size and every variant is on our Festo gripper selection guide.
Frequently asked questions
What does the type code DHWS-16-A mean?
DHPS is the Festo series for two-jaw parallel grippers, DHWS for angle grippers and DHRS for radial grippers. The number after it is the size, so this is size 16. The A stands for the standard version of the series. With no NC or NO suffix, the gripper is double-acting and has no spring.
What is the difference between the DHWS-16-A and the DHWS-16-A-NC?
Both are the same gripper body with the same pneumatic gripping torque. The A version is double-acting with no spring and works from 2 bar. The NC version has an integrated compression spring that closes the jaws when the gripper is depressurised, so the workpiece is still held if the air supply or the machine power fails, and it can also be driven single-acting. The NC version needs at least 4 bar because the air works against the spring. The DHWS series has no NO version.
How much gripping torque does the DHWS-16-A give at 4 bar instead of 6 bar?
The gripping torque of a Festo gripper follows the operating pressure almost linearly, so at 4 bar you can expect roughly 76 Ncm closing instead of 114 Ncm at 6 bar. Festo publishes exact force curves for each size in the DHWS catalogue, and the curves also depend on the lever arm of your gripper fingers.
Which position sensors fit the DHWS-16-A?
The body has integrated sensor slots on both sides. The usual choices are the SMT-8G, the SMAT-8M analogue sensor and the SDBT-MSX. Two sensors are normally fitted, one for the open position and one for the closed position.
How long can the gripper fingers be on the DHWS-16-A?
The limit is not the length itself but the load it puts on the jaws. This size takes a maximum static force of 50 N on a gripper jaw and a maximum static torque of 1.6 Nm in Mx, My and Mz. Longer fingers increase the torque and reduce the usable gripping torque, so the finger length has to be checked against those figures.
How far do the jaws of the DHWS-16-A open?
The total opening angle is 40 degrees, which is 20 degrees per gripper jaw. That is enough to clear the workpiece completely on release while keeping the swing, and the cycle time, short.
Is this a genuine Festo part?
Yes. RendatSP supplies new original Festo parts in factory packaging. This item is Festo part number 1310178, type code DHWS-16-A, GTIN 4052568229665. We do not sell copies or refurbished units.
Do you ship the DHWS-16-A to Iraq, Saudi Arabia and other Arab markets?
Yes. We ship worldwide from our warehouses and we have local agents in 11 countries, including Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan. Send us the part number and quantity and we will quote delivery to your city.
All Festo DHWS models we supply
| Model | رقم صنف Festo | Size | Opening angle | Gripping torque at 6 bar, closing | Version |
|---|---|---|---|---|---|
| DHWS-10-A | 1310177 | 10 | 40 deg | 30 Ncm | Double-acting |
| DHWS-16-A (this page) | 1310178 | 16 | 40 deg | 114 Ncm | Double-acting |
| DHWS-16-A-NC | 1310179 | 16 | 40 deg | 114 Ncm | Spring closing (NC) |
| DHWS-25-A | 1310180 | 25 | 40 deg | 356 Ncm | Double-acting |
| DHWS-25-A-NC | 1310181 | 25 | 40 deg | 356 Ncm | Spring closing (NC) |
| DHWS-32-A | 1310182 | 32 | 40 deg | 746 Ncm | Double-acting |
| DHWS-32-A-NC | 1310183 | 32 | 40 deg | 746 Ncm | Spring closing (NC) |
| DHWS-40-A | 1310184 | 40 | 40 deg | 1362 Ncm | Double-acting |
| DHWS-40-A-NC | 1310185 | 40 | 40 deg | 1362 Ncm | Spring closing (NC) |
Sensors and accessories
The parts most often ordered together with a Festo gripper are listed below. Send us the gripper part number and we will quote the matching items in the same offer.
- Proximity switches SMT-8G, SMAT-8M and SDBT-MSX for the integrated sensor slots, and the SMH-S1 Hall sensor for the smallest sizes
- Connecting cables of the NEBU and NEBA families
- Centring sleeves ZBH for accurate mounting of the gripper and of the gripper fingers
- Adapter kits DHAA and HAPG for mounting the gripper on rotary drives, linear axes and robot flanges
- Proportional pressure regulator VPPM, where the gripping force has to be set for delicate workpieces
- Air preparation and fittings, so the gripper receives compressed air to ISO 8573-1:2010 [7:4:4]
Ordering and delivery
RendatSP supplies genuine Festo DHWS-16-A grippers, Festo part number 1310178, new and in original packaging. Prices are quoted on request because they depend on quantity and destination. Send us the part number and the quantity through the order form on this page, by email to info@rendatsp.com, or on WhatsApp at +86 181 5871 1787, and we normally reply with a price and a delivery time within 24 hours.
We hold more than 100,000 industrial spare parts on request, serve over 500 factories, and ship worldwide with local agents in Saudi Arabia, Iraq, the United Arab Emirates, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan. If you are not sure which gripper size your machine uses, send a photo of the part or of the machine label and our engineers will identify it for you.
