ABS Injection Mould With 718 Cavity Steel
Single cavity ABS tool, 718 cavity, no slides, side gate, 50 sec cycle, 500,000 shots.
What This Tool Is
A straight pull ABS tool in 718 pre-hardened steel. Where the part is not plated and the plant is not damp, 718 does the job for less than a stainless grade. The tool runs no slides at all and a side gate. The archived record puts the cycle at 50 sec and the tool life at 500,000 shots.
ABS moulds easily, plates well and is the default for bathroom and consumer parts. It off-gasses in the tool, which is why stainless cavity steels turn up so often alongside it.
Company catalogue record 176.
Specification And Trade Terms
Mould specification
| Product materials | ABS |
|---|---|
| Mould material | 718 |
| Cavity | 1 x 1 |
| Slider | 0 |
| Gate | Side gate |
| Cycle time | 50 sec |
| Warranty | 500,000 shots |
Commercial terms
| Product origin | China |
|---|---|
| Price terms | FOB Xiamen or CIF |
| Payment terms | T/T or L/C |
| Minimum order | 1 set |
| Mould standard | HASCO or DME standard components |
Key Benefits
718 is a pre-hardened general purpose mould steel, which is why it is the cavity steel on this an unplated ABS part at moderate volume tool
A side gate feeds the part from the edge on a simple two plate tool
A single impression keeps the tool cost down and makes sense until annual volume genuinely outgrows one cavity
With nothing moving sideways there is no slide to wear, no wear plate to grease and nowhere for flash to start
ABS moulds easily, plates well and is the default for bathroom and consumer parts
Problems It Solves
ABS off-gasses in the tool, and a cavity that corrodes between runs shows up as pitting on a plated part
A cold gate on a visible face leaves a witness that somebody then has to trim, colour match or hide
A pre-hardened cavity substituted into a job that needed a quenched one fails early, and the saving goes on the first repair
A single impression tool cannot supply a programme once it reaches production volume, and by then the tool is already paid for
Who It Is For And Where It Is Used
Who it is for
- Buyers with a part outside the usual industrial groups
- Programmes needing a family or multi impression layout
- Companies consolidating odd tooling with one source
Application scenarios
- A four plus one family tool where four of one part ship with one of another
- A general ABS part that needs a cost effective 718 cavity rather than a stainless one
- A one off tool that still has to be built properly
Technical Features And Materials
Technical features
- 718 cavity and core
- 1 x 1 impression layout
- Side gate feed
- Straight pull construction with no side actions
- Cavity and core rated at 500,000 shots
- HASCO or DME standard mould base components
Customisation options
- Built as a two cavity or multi impression tool where the annual volume supports it
- Cavity steel changed from 718 where your moulding grade or your expected shot count calls for something different
- Gate type moved away from the side gate if the cosmetic face or the degating requirement changes
- Cosmetic features such as texture, logos and part numbers cut as replaceable inserts so a later change does not mean a new cavity
- Mould base built to HASCO or DME dimensions, or to a standard your own tool room already stocks spares for
Materials
- ABS
How This Mould Is Made
- Cavity and core blocks are inspected against the specified grade before they enter the machining route
- Cavity geometry is cut on the CNC machining centres from programmes generated off the released part model
- Rib roots, text and internal corners are burned in with EDM electrodes, which is detail no rotating cutter can reach
- Inserts and ejector holes are wire cut so that components drop in to a repeatable fit
- The moulding face is polished to the finish the part needs, which for a plated part is a different grade from a textured one
- Parting line, shut offs and ejection are fitted and spotted by hand at the bench
- The tool is trialled on one of our injection machines and the 50 sec cycle is measured rather than assumed
Quality Control On This Tool
- Incoming cavity and core steel is checked against the grade on the order, not against the delivery note
- Machined inserts and plates are measured between operations rather than only at the end of the route
- Trial parts are measured on the 2D image measuring projector against the dimensions nominated on your drawing
- Corrections found at trial are recorded against the mould number with the date and the reason, so a repair years later starts from what the tool actually is
- Before shipment the water and hydraulic circuits are blown out and plugged and the moulding faces are oiled
Compared With The Alternatives
A two cavity version of the same part
Doubles output per cycle for roughly 60 to 70 percent more tool cost. It pays back above a few hundred thousand pieces a year and not below.
A quenched stainless cavity such as S136
Longer polish life and corrosion resistance for a plated or damp environment part, at a higher steel and heat treatment cost than this tool needed.
A hot runner version
Removes the runner weight and allows a gate in the middle of the part, at a higher tool cost and with a heated manifold to maintain.
Use And Maintenance Guide
- Run the tool in the ABS grade it was trialled with; changing grade changes shrinkage and cavity wear at the same time
- Inspect the side gate at every service, because gate condition is what decides whether parts come off the tool clean
- With no slides the maintenance is ejection and cooling, so check ejector pin return and flush the water circuits on schedule
- Oil the moulding faces and plug the circuits for any storage longer than a week
- Do not chase the cycle below 50 sec without re-measuring parts; the archived figure already assumes proper cooling
Related Products
Moulds For Other Product Series
ASA Family Mould On LKM Base
A 4+1 family layout matched to a real four to one part ratio
Product materials ASAMould material LKM
Moulds For Other Product Series
Custom Plastic Injection Moulds
Three archived records that carry a name and nothing else
Mould Components And Inserts
Mould Inserts And Core Pins
Replace the feature that wore out, not the whole cavity
Mould Components And Inserts
Mould Base Components
Guide pillars, bushings and slide hardware as a matched set
Industries And Guides
Industry
IT And Communications
Enclosures, covers and moulded detail parts for IT and communications hardware
Industry
Medical Instrument
Instrument housings and moulded components for medical equipment makers
Material Guide
How To Choose Cavity Steel For An Injection Mould
S136, NAK80, S-Star, SKD61 and 718 all appear in this catalogue. What each one is actually for, and what it costs you to pick the wrong one.
ABS Injection Mould With 718 Cavity Steel Questions
What buyers ask about this tool before ordering.
Why 718 for this tool?
718 is a pre-hardened general purpose mould steel. It costs less than a stainless grade and machines faster, and on an unplated part in a dry plant it does the job without the extra spend.
What does the side gate mean for the finished part?
A side gate feeds the part from the edge on a simple two plate tool. The witness sits on the edge, so the gate position has to land somewhere the assembly or the finish covers.
What does the 500,000 shots figure actually cover?
It is the cavity and core life the tool was built for, running the nominated ABS grade under normal maintenance. It is not a guarantee against damage from a mispositioned part, a press fault or a missed service interval.
Is the 50 sec cycle achievable in our press?
It was measured on a trial here with the mould running ABS. Cycle time follows the heaviest section of the part far more than it follows the press, so it should transfer, but confirm your clamp tonnage and cooling capacity with us first.
Do you supply the moulded parts as well as the mould?
Yes. The plant runs injection machines below 600 tons on the same site as the tool room, so a mould built here can be trialled and then run for production without shipping it anywhere.
Get A Quotation For This Tool
Tell us your moulding grade, annual volume and target date and we will come back with a specification you can compare against any other offer.