Hot, humid and wet
The climate is equatorial, so ingress protection and charging routines are practical concerns.
Kalimantan Mining · Ex-proof
Ex-Proof Smartphone in Kalimantan Mining
A Domestic Market Obligation requires coal miners to allocate 25 percent of production to local use at a fixed price, which shapes how much coal is railed and barged to domestic power stations. Hazardous-area work centres on fuel storage, coal handling and preparation, and mine power plants. This page explains what to look for in an Ex-proof smartphone for Kalimantan coal mining region, and where the IS-04Z1 stands against that list today.
Pre-launch · certification in progress · Launching Q4 2026
Marking targetEx ib IIC T4Intrinsic safety, Zone 1 / 21 design target · certification in progress
AvailabilityQ4 2026via authorised distributors
Search topicEx-proof
DeviceSmartphone
RouteSpecification
WhereKalimantan Mining
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Kalimantan coal mining region: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
Status: pre-launch. IECEx, ATEX, UKEX and NEC 500 certification is in progress and no certificate has been issued; launch is planned for Q4 2026. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
At a glance · Ex-proof
Checklist: Ex-proof smartphone for Kalimantan coal mining region
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Ex marking | Group, category, protection concept, gas group, temperature class | II 2 G Ex ib IIC T4 (target) |
| Gas group | IIA, IIB or IIC matched to the area drawing | IIC (target) |
| Temperature class | T-class below the ignition temperature of the gas | T4, 135 °C (target) |
| Where it applies | Kalimantan coal mining region: Coal handling and preparation plants (dust, Zone 21), Fuel and lubricant storage, Mine-site power generation | Classified by the site operator |
Product · Kalimantan Mining
The product behind this search: the SAMS IS-04Z1.
SAMS IS-04Z1
An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Kalimantan Mining. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
- IP68 sealed
- 4,000 mAh battery
- 50 MP camera
- Android 16
- Zone 1 / Zone 21 design target
The site · Kalimantan coal mining region
Kalimantan coal mining region: where the IS-04Z1 would work
Who operates there and which kinds of classified area a handset would meet, from the SAMS site research.
Operators and companies on site
- Kaltim Prima Coal (Sangatta and Bengalon)
- Adaro Indonesia (Tutupan, Tabalong)
Classified areas to expect
- Coal handling and preparation plants (dust, Zone 21)
- Fuel and lubricant storage
- Mine-site power generation
- Coal loading terminals
Local conditions · Kalimantan coal mining region
What Kalimantan coal mining region means for portable equipment
Large concessions
Kaltim Prima holds a 90,960-hectare concession across Sangatta and Bengalon and moves coal on a 13-kilometre conveyor to its Tanjung Bara port.
Field notes · Kalimantan coal mining region
More about Kalimantan coal mining region that matters for portable equipment
Kalimantan coal mining region: infrastructure
State utility PLN plans additional coal-fired capacity and has begun co-firing biomass at 17 power plants, so mines and power stations are linked by long coal supply chains.
Kalimantan coal mining region: people and language
The coal industry is fragmented, with a few large producers and many small firms, so equipment rules and safety culture can vary widely between neighbouring mine sites.
Kalimantan coal mining region: climate and equipment wear
Coal dust is a recognised health and handling issue in Indonesian mining, so dust control, cleaning and sealed enclosures matter for electronics used around crushers, conveyors and stockpiles.
Kalimantan coal mining region: industry on the ground
Coal bed methane reserves of about 12.8 trillion cubic metres lie mainly in Kalimantan and Sumatra, which is a reminder that methane can accompany coal seams, though development has been limited.
The term · Ex-proof
What “Ex-proof” means for a smartphone
“Ex-proof” is shorthand for equipment carrying an explosion-protection marking (the Ex mark) that matches the area it enters. The marking states the protection concept, gas or dust group and temperature class, and it must be backed by a certificate issued by a recognised body, so a phone described as Ex-proof should come with a certificate number you can check.
The IS-04Z1 is designed to carry the marking II 2 G Ex ib IIC T4. That is a target: certification is in progress, no certificate has been issued, and SAMS will publish the certificate numbers when they exist.
In Kalimantan coal mining region. A marking check would first separate gas from dust. Coal preparation plants are Zone 21 dust areas in the sheet; fuel stores are gas. The IS-04Z1 target marking, II 2 G Ex ib IIC T4, addresses gas only, so dust areas need separate assessment.
The route · specification
Specifying an Ex-proof smartphone for Kalimantan Mining
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
Check on the paper
- Marking
- Equipment group, category, protection concept, gas group and temperature class, matched to the area drawing.
- Certificate and schedule
- A certificate number, issuing body and the schedule of conditions, not a brochure claim.
- Standards edition
- The IEC 60079 or national standard edition the certificate was issued against.
Check for the IS-04Z1
- Marking target
- II 2 G Ex ib IIC T4: a target, not yet a certificate.
- Certificate status
- IECEx, ATEX, UKEX and NEC 500 in progress; none issued.
- Operator approval
- Separate from the certificate and handled with the site operator.
Questions · Kalimantan Mining
Frequently asked questions
Can we buy an Ex-proof smartphone in Kalimantan Mining today?
Not yet. The IS-04Z1 is pre-launch and its certification is still in progress ahead of a Q4 2026 launch. No unit goes into a classified area before the certificate covering it exists. The datasheet, the certification schedule and safe-area evaluation units are available now.
What does an Ex-proof smartphone in Kalimantan Mining cost?
SAMS has not published a price. Any figure you are offered for an uncertified Ex phone should be treated with caution; written indicative pricing is available for a defined quantity and site.
What Ex marking will the IS-04Z1 carry?
The marking target is II 2 G Ex ib IIC T4. It becomes a marking only when the certificate is issued; until then it is a design target.
Which areas at Kalimantan coal mining region would use it?
Likely candidates are coal handling and preparation plants (dust, zone 21), fuel and lubricant storage, mine-site power generation, coal loading terminals. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
Is intrinsically safe the same as explosion proof?
Not exactly. Explosion proof is a broad everyday term; intrinsic safety is one protection concept, which limits energy so ignition cannot occur. Flameproof (Ex d) is a different concept that contains an explosion. The IS-04Z1 is intrinsically safe by design.
What are the main hazardous-area concerns at a Kalimantan coal mine?
Combustible coal dust around crushers, conveyors, stockpiles and loading, plus fuel storage and workshops. Open-pit sites typically have fewer gas risks than underground mines, but the operator defines its zones, so ask for them before using handheld devices.
How should I plan equipment supply for remote Kalimantan sites?
Most deliveries go by sea to Balikpapan, Samarinda or Banjarmasin and then by road or barge, so allow longer lead times. Stock spare batteries and chargers and confirm customs and radio type-approval requirements with your freight agent.
What practical issues come with large contractor-heavy fleets at Kalimantan mines?
Many crews share devices and sites, so enrolment, ownership and return procedures matter. Heat, humidity and dust affect battery and seals. Charge only in safe areas. Check the operator's approved-vendor list before purchase. Confirm the current process with the site operator.
Related guides
Keep exploring
More on Kalimantan Mining, and on other places in Indonesia.
IECEx Mobile Phone in Kalimantan MiningSame place, different guide
Explosion-Proof Mobile Phone Distributor in Kalimantan MiningSame place, different guide
Rugged Mobile Phone Distributor in Kalimantan MiningSame place, different guide
Intrinsically Safe Mobile Phone in Kalimantan MiningSame place, different guide
ATEX and IECEx Mobile Phone Distributor in Kalimantan MiningSame place, different guide
Hazardous Area Mobile Phone in Kalimantan MiningSame place, different guide
ATEX and IECEx Mobile Phone Distributor in Dumai RefineryElsewhere in Indonesia
ATEX and IECEx Mobile Phone Distributor in SurabayaElsewhere in Indonesia
ATEX and IECEx Mobile Phone Distributor in BalikpapanElsewhere in Indonesia
ATEX and IECEx Mobile Phone Distributor in Pekanbaru Oil FieldElsewhere in Indonesia
Indonesia market guideCertification route and regulators
All guides for IndonesiaEvery route we cover
Certification statusWhat is in progress
Enquiry · Kalimantan coal mining region
Ask about the IS-04Z1 for Kalimantan coal mining region, Indonesia
Share the site details and quantity. You will get the datasheet and the certification schedule back by email; pricing is indicative only until launch.
Enquiry · Kalimantan coal mining region
Launching Q4 2026
Planning for Kalimantan Mining?
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.